diff --git a/lib/hubspot/deal.rb b/lib/hubspot/deal.rb
index 445b2f70..989920bc 100644
--- a/lib/hubspot/deal.rb
+++ b/lib/hubspot/deal.rb
@@ -39,6 +39,28 @@ def create!(portal_id, company_ids, vids, params={})
         new(response)
       end
 
+      # Updates the properties of a deal
+      # {http://developers.hubspot.com/docs/methods/deals/update_deal}
+      # @param deal_id [Integer] hubspot deal_id
+      # @param params [Hash] hash of properties to update
+      # @return [boolean] success
+      def update(id, properties = {})
+        update!(id, properties)
+      rescue Hubspot::RequestError => e
+        false
+      end
+
+      # Updates the properties of a deal
+      # {http://developers.hubspot.com/docs/methods/deals/update_deal}
+      # @param deal_id [Integer] hubspot deal_id
+      # @param params [Hash] hash of properties to update
+      # @return [Hubspot::Deal] Deal record
+      def update!(id, properties = {})
+        request = { properties: Hubspot::Utils.hash_to_properties(properties.stringify_keys, key_name: 'name') }
+        response = Hubspot::Connection.put_json(UPDATE_DEAL_PATH, params: { deal_id: id, no_parse: true }, body: request)
+        response.success?
+      end
+
        # Associate a deal with a contact or company
        # {http://developers.hubspot.com/docs/methods/deals/associate_deal}
        # Usage
@@ -132,10 +154,11 @@ def [](property)
     # @param params [Hash] hash of properties to update
     # @return [Hubspot::Deal] self
     def update!(params)
-      query = {"properties" => Hubspot::Utils.hash_to_properties(params.stringify_keys!, key_name: 'name')}
+      query = { 'properties' => Hubspot::Utils.hash_to_properties(params.stringify_keys!, key_name: 'name') }
       Hubspot::Connection.put_json(UPDATE_DEAL_PATH, params: { deal_id: deal_id }, body: query)
       @properties.merge!(params)
       self
     end
+    alias_method :update, :update!
   end
 end
diff --git a/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_with_an_existing_resource_updates.yml b/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_with_an_existing_resource_updates.yml
new file mode 100644
index 00000000..785c612e
--- /dev/null
+++ b/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_with_an_existing_resource_updates.yml
@@ -0,0 +1,187 @@
+---
+http_interactions:
+- request:
+    method: post
+    uri: https://api.hubapi.com/deals/v1/deal?hapikey=demo
+    body:
+      encoding: UTF-8
+      string: '{"portalId":62515,"associations":{"associatedCompanyIds":[8954037],"associatedVids":[27136]},"properties":[{"name":"amount","value":"30"}]}'
+    headers:
+      Content-Type:
+      - application/json
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Date:
+      - Fri, 08 Nov 2019 15:18:58 GMT
+      Content-Type:
+      - application/json;charset=utf-8
+      Transfer-Encoding:
+      - chunked
+      Connection:
+      - keep-alive
+      Set-Cookie:
+      - __cfduid=redacted; expires=Sat, 07-Nov-20
+        15:18:58 GMT; path=/; domain=.hubapi.com; HttpOnly
+      X-Trace:
+      - redacted
+      X-Hubspot-Ratelimit-Daily:
+      - '250000'
+      X-Hubspot-Ratelimit-Daily-Remaining:
+      - '249607'
+      X-Hubspot-Ratelimit-Interval-Milliseconds:
+      - '10000'
+      X-Hubspot-Ratelimit-Remaining:
+      - '99'
+      X-Hubspot-Ratelimit-Max:
+      - '100'
+      X-Hubspot-Ratelimit-Secondly:
+      - '10'
+      X-Hubspot-Ratelimit-Secondly-Remaining:
+      - '9'
+      Vary:
+      - Accept-Encoding
+      Access-Control-Allow-Credentials:
+      - 'false'
+      Cf-Cache-Status:
+      - DYNAMIC
+      Strict-Transport-Security:
+      - max-age=31536000; includeSubDomains; preload
+      Expect-Ct:
+      - max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
+      Server:
+      - cloudflare
+      Cf-Ray:
+      - 532885c7b84eb7db-CDG
+    body:
+      encoding: UTF-8
+      string: '{"portalId":62515,"dealId":1152775540,"isDeleted":false,"associations":{"associatedVids":[],"associatedCompanyIds":[],"associatedDealIds":[],"associatedTicketIds":[]},"associationCreateFailures":[{"association":{"fromObjectId":1152775540,"toObjectId":8954037,"associationCategory":"HUBSPOT_DEFINED","associationTypeId":5,"timestamp":null},"failReason":"INVALID_OBJECT_IDS","message":"COMPANY=8954037
+        is not valid"},{"association":{"fromObjectId":1152775540,"toObjectId":27136,"associationCategory":"HUBSPOT_DEFINED","associationTypeId":3,"timestamp":null},"failReason":"INVALID_OBJECT_IDS","message":"CONTACT=27136
+        is not valid"}],"properties":{"hs_closed_amount_in_home_currency":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_closed_amount_in_home_currency","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"amount":{"value":"30","timestamp":1573226338621,"source":"API","sourceId":null,"versions":[{"name":"amount","value":"30","timestamp":1573226338621,"source":"API","sourceVid":[]}]},"hs_closed_amount":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_closed_amount","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_lastmodifieddate":{"value":"1573226338621","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_lastmodifieddate","value":"1573226338621","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[]}]},"hs_createdate":{"value":"1573226338621","timestamp":1573226338621,"source":"API","sourceId":"","versions":[{"name":"hs_createdate","value":"1573226338621","timestamp":1573226338621,"sourceId":"","source":"API","sourceVid":[]}]},"hs_object_id":{"value":"1152775540","timestamp":1573226338621,"source":"API","sourceId":null,"versions":[{"name":"hs_object_id","value":"1152775540","timestamp":1573226338621,"source":"API","sourceVid":[]}]},"createdate":{"value":"1573226338621","timestamp":1573226338621,"source":"API","sourceId":null,"versions":[{"name":"createdate","value":"1573226338621","timestamp":1573226338621,"source":"API","sourceVid":[]}]},"hs_projected_amount":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_projected_amount","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"amount_in_home_currency":{"value":"30","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"amount_in_home_currency","value":"30","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"days_to_close":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"days_to_close","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_deal_stage_probability":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_deal_stage_probability","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_projected_amount_in_home_currency":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_projected_amount_in_home_currency","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]}},"imports":[],"stateChanges":[]}'
+    http_version:
+  recorded_at: Fri, 08 Nov 2019 15:18:58 GMT
+- request:
+    method: put
+    uri: https://api.hubapi.com/deals/v1/deal/1152775540?hapikey=demo
+    body:
+      encoding: UTF-8
+      string: '{"properties":[{"name":"dealname","value":"super deal"}]}'
+    headers:
+      Content-Type:
+      - application/json
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Date:
+      - Fri, 08 Nov 2019 15:18:59 GMT
+      Content-Type:
+      - application/json;charset=utf-8
+      Transfer-Encoding:
+      - chunked
+      Connection:
+      - keep-alive
+      Set-Cookie:
+      - __cfduid=redacted; expires=Sat, 07-Nov-20
+        15:18:58 GMT; path=/; domain=.hubapi.com; HttpOnly
+      X-Trace:
+      - redacted
+      X-Hubspot-Ratelimit-Daily:
+      - '250000'
+      X-Hubspot-Ratelimit-Daily-Remaining:
+      - '249606'
+      X-Hubspot-Ratelimit-Interval-Milliseconds:
+      - '10000'
+      X-Hubspot-Ratelimit-Remaining:
+      - '98'
+      X-Hubspot-Ratelimit-Max:
+      - '100'
+      X-Hubspot-Ratelimit-Secondly:
+      - '10'
+      X-Hubspot-Ratelimit-Secondly-Remaining:
+      - '9'
+      Vary:
+      - Accept-Encoding
+      Access-Control-Allow-Credentials:
+      - 'false'
+      Cf-Cache-Status:
+      - DYNAMIC
+      Strict-Transport-Security:
+      - max-age=31536000; includeSubDomains; preload
+      Expect-Ct:
+      - max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
+      Server:
+      - cloudflare
+      Cf-Ray:
+      - 532885caac2f68f4-CDG
+    body:
+      encoding: UTF-8
+      string: '{"portalId":62515,"dealId":1152775540,"isDeleted":false,"associations":{"associatedVids":[],"associatedCompanyIds":[],"associatedDealIds":[],"associatedTicketIds":[]},"properties":{"hs_closed_amount_in_home_currency":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_closed_amount_in_home_currency","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"dealname":{"value":"super
+        deal","timestamp":1573226339087,"source":"API","sourceId":null,"versions":[{"name":"dealname","value":"super
+        deal","timestamp":1573226339087,"source":"API","sourceVid":[]}]},"amount":{"value":"30","timestamp":1573226338621,"source":"API","sourceId":null,"versions":[{"name":"amount","value":"30","timestamp":1573226338621,"source":"API","sourceVid":[]}]},"createdate":{"value":"1573226338621","timestamp":1573226338621,"source":"API","sourceId":null,"versions":[{"name":"createdate","value":"1573226338621","timestamp":1573226338621,"source":"API","sourceVid":[]}]},"amount_in_home_currency":{"value":"30","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"amount_in_home_currency","value":"30","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_deal_stage_probability":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_deal_stage_probability","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"days_to_close":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"days_to_close","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_closed_amount":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_closed_amount","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_lastmodifieddate":{"value":"1573226339087","timestamp":1573226339087,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_lastmodifieddate","value":"1573226339087","timestamp":1573226339087,"source":"CALCULATED","sourceVid":[]},{"name":"hs_lastmodifieddate","value":"1573226338621","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[]}]},"hs_createdate":{"value":"1573226338621","timestamp":1573226338621,"source":"API","sourceId":"","versions":[{"name":"hs_createdate","value":"1573226338621","timestamp":1573226338621,"sourceId":"","source":"API","sourceVid":[]}]},"hs_object_id":{"value":"1152775540","timestamp":1573226338621,"source":"API","sourceId":null,"versions":[{"name":"hs_object_id","value":"1152775540","timestamp":1573226338621,"source":"API","sourceVid":[]}]},"hs_projected_amount":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_projected_amount","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_projected_amount_in_home_currency":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_projected_amount_in_home_currency","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]}},"imports":[],"stateChanges":[]}'
+    http_version:
+  recorded_at: Fri, 08 Nov 2019 15:18:59 GMT
+- request:
+    method: get
+    uri: https://api.hubapi.com/deals/v1/deal/1152775540?hapikey=demo
+    body:
+      encoding: US-ASCII
+      string: ''
+    headers: {}
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Date:
+      - Fri, 08 Nov 2019 15:22:45 GMT
+      Content-Type:
+      - application/json;charset=utf-8
+      Transfer-Encoding:
+      - chunked
+      Connection:
+      - keep-alive
+      Set-Cookie:
+      - __cfduid=redacted; expires=Sat, 07-Nov-20
+        15:22:45 GMT; path=/; domain=.hubapi.com; HttpOnly
+      X-Trace:
+      - redacted
+      X-Hubspot-Ratelimit-Daily:
+      - '250000'
+      X-Hubspot-Ratelimit-Daily-Remaining:
+      - '249587'
+      X-Hubspot-Ratelimit-Interval-Milliseconds:
+      - '10000'
+      X-Hubspot-Ratelimit-Remaining:
+      - '99'
+      X-Hubspot-Ratelimit-Max:
+      - '100'
+      X-Hubspot-Ratelimit-Secondly:
+      - '10'
+      X-Hubspot-Ratelimit-Secondly-Remaining:
+      - '9'
+      Vary:
+      - Accept-Encoding
+      Access-Control-Allow-Credentials:
+      - 'false'
+      Cf-Cache-Status:
+      - DYNAMIC
+      Strict-Transport-Security:
+      - max-age=31536000; includeSubDomains; preload
+      Expect-Ct:
+      - max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
+      Server:
+      - cloudflare
+      Cf-Ray:
+      - 53288b542dccb7ab-CDG
+    body:
+      encoding: UTF-8
+      string: '{"portalId":62515,"dealId":1152775540,"isDeleted":false,"associations":{"associatedVids":[],"associatedCompanyIds":[],"associatedDealIds":[],"associatedTicketIds":[]},"properties":{"hs_closed_amount_in_home_currency":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_closed_amount_in_home_currency","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"dealname":{"value":"super
+        deal","timestamp":1573226339087,"source":"API","sourceId":null,"versions":[{"name":"dealname","value":"super
+        deal","timestamp":1573226339087,"source":"API","sourceVid":[]}]},"amount":{"value":"30","timestamp":1573226338621,"source":"API","sourceId":null,"versions":[{"name":"amount","value":"30","timestamp":1573226338621,"source":"API","sourceVid":[]}]},"num_associated_contacts":{"value":"0","timestamp":1573226339407,"source":"CALCULATED","sourceId":"RollupProperties","versions":[{"name":"num_associated_contacts","value":"0","timestamp":1573226339407,"sourceId":"RollupProperties","source":"CALCULATED","sourceVid":[]}]},"createdate":{"value":"1573226338621","timestamp":1573226338621,"source":"API","sourceId":null,"versions":[{"name":"createdate","value":"1573226338621","timestamp":1573226338621,"source":"API","sourceVid":[]}]},"amount_in_home_currency":{"value":"30","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"amount_in_home_currency","value":"30","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_deal_stage_probability":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_deal_stage_probability","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"days_to_close":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"days_to_close","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_closed_amount":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_closed_amount","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_lastmodifieddate":{"value":"1573226339552","timestamp":1573226339552,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_lastmodifieddate","value":"1573226339552","timestamp":1573226339552,"source":"CALCULATED","sourceVid":[]}]},"hs_createdate":{"value":"1573226338621","timestamp":1573226338621,"source":"API","sourceId":"","versions":[{"name":"hs_createdate","value":"1573226338621","timestamp":1573226338621,"sourceId":"","source":"API","sourceVid":[]}]},"hs_object_id":{"value":"1152775540","timestamp":1573226338621,"source":"API","sourceId":null,"versions":[{"name":"hs_object_id","value":"1152775540","timestamp":1573226338621,"source":"API","sourceVid":[]}]},"hs_projected_amount":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_projected_amount","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_projected_amount_in_home_currency":{"value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_projected_amount_in_home_currency","value":"0","timestamp":1573226338621,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]}},"imports":[],"stateChanges":[]}'
+    http_version:
+  recorded_at: Fri, 08 Nov 2019 15:22:46 GMT
+recorded_with: VCR 5.0.0
diff --git a/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_with_an_invalid_resource_.yml b/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_with_an_invalid_resource_.yml
new file mode 100644
index 00000000..aab9f27b
--- /dev/null
+++ b/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_with_an_invalid_resource_.yml
@@ -0,0 +1,66 @@
+---
+http_interactions:
+- request:
+    method: put
+    uri: https://api.hubapi.com/deals/v1/deal/0?hapikey=demo
+    body:
+      encoding: UTF-8
+      string: '{"properties":[{"name":"dealname","value":"super deal"}]}'
+    headers:
+      Content-Type:
+      - application/json
+  response:
+    status:
+      code: 404
+      message: Not Found
+    headers:
+      Date:
+      - Fri, 08 Nov 2019 15:18:59 GMT
+      Content-Type:
+      - application/json;charset=utf-8
+      Content-Length:
+      - '263'
+      Connection:
+      - keep-alive
+      Set-Cookie:
+      - __cfduid=redacted; expires=Sat, 07-Nov-20
+        15:18:59 GMT; path=/; domain=.hubapi.com; HttpOnly
+      X-Trace:
+      - redacted
+      X-Hubspot-Notfound:
+      - 'true'
+      X-Hubspot-Ratelimit-Daily:
+      - '250000'
+      X-Hubspot-Ratelimit-Daily-Remaining:
+      - '249605'
+      X-Hubspot-Ratelimit-Interval-Milliseconds:
+      - '10000'
+      X-Hubspot-Ratelimit-Remaining:
+      - '97'
+      X-Hubspot-Ratelimit-Max:
+      - '100'
+      X-Hubspot-Ratelimit-Secondly:
+      - '10'
+      X-Hubspot-Ratelimit-Secondly-Remaining:
+      - '9'
+      Vary:
+      - Accept-Encoding
+      Access-Control-Allow-Credentials:
+      - 'false'
+      Cf-Cache-Status:
+      - DYNAMIC
+      Strict-Transport-Security:
+      - max-age=31536000; includeSubDomains; preload
+      Expect-Ct:
+      - max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
+      Server:
+      - cloudflare
+      Cf-Ray:
+      - 532885cd1c83b7cf-CDG
+    body:
+      encoding: UTF-8
+      string: '{"status":"error","message":"No deal found for dealId=0 portalId=62515","correlationId":"f8a1c167-ffc4-4c7d-a868-82a7ee43b347","errors":[{"message":"This
+        deal 0 does not exist."}],"category":"OBJECT_NOT_FOUND","requestId":"d8e67bd2-e41d-4e08-b6f7-91747c037ab8"}'
+    http_version:
+  recorded_at: Fri, 08 Nov 2019 15:18:59 GMT
+recorded_with: VCR 5.0.0
diff --git a/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_with_an_invalid_resource_fails_with_an_error.yml b/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_with_an_invalid_resource_fails_with_an_error.yml
new file mode 100644
index 00000000..3af9e637
--- /dev/null
+++ b/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_with_an_invalid_resource_fails_with_an_error.yml
@@ -0,0 +1,66 @@
+---
+http_interactions:
+- request:
+    method: put
+    uri: https://api.hubapi.com/deals/v1/deal/0?hapikey=demo
+    body:
+      encoding: UTF-8
+      string: '{"properties":[{"name":"dealname","value":"super deal"}]}'
+    headers:
+      Content-Type:
+      - application/json
+  response:
+    status:
+      code: 404
+      message: Not Found
+    headers:
+      Date:
+      - Fri, 08 Nov 2019 15:18:59 GMT
+      Content-Type:
+      - application/json;charset=utf-8
+      Content-Length:
+      - '263'
+      Connection:
+      - keep-alive
+      Set-Cookie:
+      - __cfduid=redacted; expires=Sat, 07-Nov-20
+        15:18:59 GMT; path=/; domain=.hubapi.com; HttpOnly
+      X-Trace:
+      - redacted
+      X-Hubspot-Notfound:
+      - 'true'
+      X-Hubspot-Ratelimit-Daily:
+      - '250000'
+      X-Hubspot-Ratelimit-Daily-Remaining:
+      - '249604'
+      X-Hubspot-Ratelimit-Interval-Milliseconds:
+      - '10000'
+      X-Hubspot-Ratelimit-Remaining:
+      - '96'
+      X-Hubspot-Ratelimit-Max:
+      - '100'
+      X-Hubspot-Ratelimit-Secondly:
+      - '10'
+      X-Hubspot-Ratelimit-Secondly-Remaining:
+      - '9'
+      Vary:
+      - Accept-Encoding
+      Access-Control-Allow-Credentials:
+      - 'false'
+      Cf-Cache-Status:
+      - DYNAMIC
+      Strict-Transport-Security:
+      - max-age=31536000; includeSubDomains; preload
+      Expect-Ct:
+      - max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
+      Server:
+      - cloudflare
+      Cf-Ray:
+      - 532885ce4f7fcdd7-CDG
+    body:
+      encoding: UTF-8
+      string: '{"status":"error","message":"No deal found for dealId=0 portalId=62515","correlationId":"ea967775-f24d-4c01-9a17-4e5b8709c90b","errors":[{"message":"This
+        deal 0 does not exist."}],"category":"OBJECT_NOT_FOUND","requestId":"6a572d20-8314-4aa5-8496-49e7594bd1d1"}'
+    http_version:
+  recorded_at: Fri, 08 Nov 2019 15:18:59 GMT
+recorded_with: VCR 5.0.0
diff --git a/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_with_overlapping_changes_merges_and_updates_the_properties.yml b/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_with_overlapping_changes_merges_and_updates_the_properties.yml
new file mode 100644
index 00000000..d4378eba
--- /dev/null
+++ b/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_with_overlapping_changes_merges_and_updates_the_properties.yml
@@ -0,0 +1,127 @@
+---
+http_interactions:
+- request:
+    method: post
+    uri: https://api.hubapi.com/deals/v1/deal?hapikey=demo
+    body:
+      encoding: UTF-8
+      string: '{"portalId":62515,"associations":{"associatedCompanyIds":[8954037],"associatedVids":[27136]},"properties":[{"name":"amount","value":"30"}]}'
+    headers:
+      Content-Type:
+      - application/json
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Date:
+      - Fri, 08 Nov 2019 15:19:02 GMT
+      Content-Type:
+      - application/json;charset=utf-8
+      Transfer-Encoding:
+      - chunked
+      Connection:
+      - keep-alive
+      Set-Cookie:
+      - __cfduid=redacted; expires=Sat, 07-Nov-20
+        15:19:01 GMT; path=/; domain=.hubapi.com; HttpOnly
+      X-Trace:
+      - redacted
+      X-Hubspot-Ratelimit-Daily:
+      - '250000'
+      X-Hubspot-Ratelimit-Daily-Remaining:
+      - '249599'
+      X-Hubspot-Ratelimit-Interval-Milliseconds:
+      - '10000'
+      X-Hubspot-Ratelimit-Remaining:
+      - '91'
+      X-Hubspot-Ratelimit-Max:
+      - '100'
+      X-Hubspot-Ratelimit-Secondly:
+      - '10'
+      X-Hubspot-Ratelimit-Secondly-Remaining:
+      - '9'
+      Vary:
+      - Accept-Encoding
+      Access-Control-Allow-Credentials:
+      - 'false'
+      Cf-Cache-Status:
+      - DYNAMIC
+      Strict-Transport-Security:
+      - max-age=31536000; includeSubDomains; preload
+      Expect-Ct:
+      - max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
+      Server:
+      - cloudflare
+      Cf-Ray:
+      - 532885dc7e5ab78d-CDG
+    body:
+      encoding: UTF-8
+      string: '{"portalId":62515,"dealId":1152692179,"isDeleted":false,"associations":{"associatedVids":[],"associatedCompanyIds":[],"associatedDealIds":[],"associatedTicketIds":[]},"associationCreateFailures":[{"association":{"fromObjectId":1152692179,"toObjectId":8954037,"associationCategory":"HUBSPOT_DEFINED","associationTypeId":5,"timestamp":null},"failReason":"INVALID_OBJECT_IDS","message":"COMPANY=8954037
+        is not valid"},{"association":{"fromObjectId":1152692179,"toObjectId":27136,"associationCategory":"HUBSPOT_DEFINED","associationTypeId":3,"timestamp":null},"failReason":"INVALID_OBJECT_IDS","message":"CONTACT=27136
+        is not valid"}],"properties":{"hs_closed_amount_in_home_currency":{"value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_closed_amount_in_home_currency","value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"amount":{"value":"30","timestamp":1573226341920,"source":"API","sourceId":null,"versions":[{"name":"amount","value":"30","timestamp":1573226341920,"source":"API","sourceVid":[]}]},"hs_closed_amount":{"value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_closed_amount","value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_lastmodifieddate":{"value":"1573226341920","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_lastmodifieddate","value":"1573226341920","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[]}]},"hs_createdate":{"value":"1573226341920","timestamp":1573226341920,"source":"API","sourceId":"","versions":[{"name":"hs_createdate","value":"1573226341920","timestamp":1573226341920,"sourceId":"","source":"API","sourceVid":[]}]},"hs_object_id":{"value":"1152692179","timestamp":1573226341920,"source":"API","sourceId":null,"versions":[{"name":"hs_object_id","value":"1152692179","timestamp":1573226341920,"source":"API","sourceVid":[]}]},"createdate":{"value":"1573226341920","timestamp":1573226341920,"source":"API","sourceId":null,"versions":[{"name":"createdate","value":"1573226341920","timestamp":1573226341920,"source":"API","sourceVid":[]}]},"hs_projected_amount":{"value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_projected_amount","value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"amount_in_home_currency":{"value":"30","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"amount_in_home_currency","value":"30","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_deal_stage_probability":{"value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_deal_stage_probability","value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"days_to_close":{"value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"days_to_close","value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_projected_amount_in_home_currency":{"value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_projected_amount_in_home_currency","value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]}},"imports":[],"stateChanges":[]}'
+    http_version:
+  recorded_at: Fri, 08 Nov 2019 15:19:02 GMT
+- request:
+    method: put
+    uri: https://api.hubapi.com/deals/v1/deal/1152692179?hapikey=demo
+    body:
+      encoding: UTF-8
+      string: '{"properties":[{"name":"dealname","value":"super deal"}]}'
+    headers:
+      Content-Type:
+      - application/json
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Date:
+      - Fri, 08 Nov 2019 15:19:02 GMT
+      Content-Type:
+      - application/json;charset=utf-8
+      Transfer-Encoding:
+      - chunked
+      Connection:
+      - keep-alive
+      Set-Cookie:
+      - __cfduid=redacted; expires=Sat, 07-Nov-20
+        15:19:02 GMT; path=/; domain=.hubapi.com; HttpOnly
+      X-Trace:
+      - redacted
+      X-Hubspot-Ratelimit-Daily:
+      - '250000'
+      X-Hubspot-Ratelimit-Daily-Remaining:
+      - '249598'
+      X-Hubspot-Ratelimit-Interval-Milliseconds:
+      - '10000'
+      X-Hubspot-Ratelimit-Remaining:
+      - '90'
+      X-Hubspot-Ratelimit-Max:
+      - '100'
+      X-Hubspot-Ratelimit-Secondly:
+      - '10'
+      X-Hubspot-Ratelimit-Secondly-Remaining:
+      - '9'
+      Vary:
+      - Accept-Encoding
+      Access-Control-Allow-Credentials:
+      - 'false'
+      Cf-Cache-Status:
+      - DYNAMIC
+      Strict-Transport-Security:
+      - max-age=31536000; includeSubDomains; preload
+      Expect-Ct:
+      - max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
+      Server:
+      - cloudflare
+      Cf-Ray:
+      - 532885df0f04692a-CDG
+    body:
+      encoding: UTF-8
+      string: '{"portalId":62515,"dealId":1152692179,"isDeleted":false,"associations":{"associatedVids":[],"associatedCompanyIds":[],"associatedDealIds":[],"associatedTicketIds":[]},"properties":{"hs_closed_amount_in_home_currency":{"value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_closed_amount_in_home_currency","value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"dealname":{"value":"super
+        deal","timestamp":1573226342377,"source":"API","sourceId":null,"versions":[{"name":"dealname","value":"super
+        deal","timestamp":1573226342377,"source":"API","sourceVid":[]}]},"amount":{"value":"30","timestamp":1573226341920,"source":"API","sourceId":null,"versions":[{"name":"amount","value":"30","timestamp":1573226341920,"source":"API","sourceVid":[]}]},"createdate":{"value":"1573226341920","timestamp":1573226341920,"source":"API","sourceId":null,"versions":[{"name":"createdate","value":"1573226341920","timestamp":1573226341920,"source":"API","sourceVid":[]}]},"amount_in_home_currency":{"value":"30","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"amount_in_home_currency","value":"30","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_deal_stage_probability":{"value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_deal_stage_probability","value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"days_to_close":{"value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"days_to_close","value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_closed_amount":{"value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_closed_amount","value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_lastmodifieddate":{"value":"1573226342377","timestamp":1573226342377,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_lastmodifieddate","value":"1573226342377","timestamp":1573226342377,"source":"CALCULATED","sourceVid":[]},{"name":"hs_lastmodifieddate","value":"1573226341920","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[]}]},"hs_createdate":{"value":"1573226341920","timestamp":1573226341920,"source":"API","sourceId":"","versions":[{"name":"hs_createdate","value":"1573226341920","timestamp":1573226341920,"sourceId":"","source":"API","sourceVid":[]}]},"hs_object_id":{"value":"1152692179","timestamp":1573226341920,"source":"API","sourceId":null,"versions":[{"name":"hs_object_id","value":"1152692179","timestamp":1573226341920,"source":"API","sourceVid":[]}]},"hs_projected_amount":{"value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_projected_amount","value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_projected_amount_in_home_currency":{"value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_projected_amount_in_home_currency","value":"0","timestamp":1573226341920,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]}},"imports":[],"stateChanges":[]}'
+    http_version:
+  recorded_at: Fri, 08 Nov 2019 15:19:02 GMT
+recorded_with: VCR 5.0.0
diff --git a/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_without_overlapping_changes_updates_the_properties.yml b/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_without_overlapping_changes_updates_the_properties.yml
new file mode 100644
index 00000000..4f697bf6
--- /dev/null
+++ b/spec/fixtures/vcr_cassettes/Hubspot_Deal_update_without_overlapping_changes_updates_the_properties.yml
@@ -0,0 +1,127 @@
+---
+http_interactions:
+- request:
+    method: post
+    uri: https://api.hubapi.com/deals/v1/deal?hapikey=demo
+    body:
+      encoding: UTF-8
+      string: '{"portalId":62515,"associations":{"associatedCompanyIds":[8954037],"associatedVids":[27136]},"properties":[{"name":"amount","value":"30"}]}'
+    headers:
+      Content-Type:
+      - application/json
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Date:
+      - Fri, 08 Nov 2019 15:19:00 GMT
+      Content-Type:
+      - application/json;charset=utf-8
+      Transfer-Encoding:
+      - chunked
+      Connection:
+      - keep-alive
+      Set-Cookie:
+      - __cfduid=redacted; expires=Sat, 07-Nov-20
+        15:18:59 GMT; path=/; domain=.hubapi.com; HttpOnly
+      X-Trace:
+      - redacted
+      X-Hubspot-Ratelimit-Daily:
+      - '250000'
+      X-Hubspot-Ratelimit-Daily-Remaining:
+      - '249603'
+      X-Hubspot-Ratelimit-Interval-Milliseconds:
+      - '10000'
+      X-Hubspot-Ratelimit-Remaining:
+      - '95'
+      X-Hubspot-Ratelimit-Max:
+      - '100'
+      X-Hubspot-Ratelimit-Secondly:
+      - '10'
+      X-Hubspot-Ratelimit-Secondly-Remaining:
+      - '9'
+      Vary:
+      - Accept-Encoding
+      Access-Control-Allow-Credentials:
+      - 'false'
+      Cf-Cache-Status:
+      - DYNAMIC
+      Strict-Transport-Security:
+      - max-age=31536000; includeSubDomains; preload
+      Expect-Ct:
+      - max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
+      Server:
+      - cloudflare
+      Cf-Ray:
+      - 532885d009416924-CDG
+    body:
+      encoding: UTF-8
+      string: '{"portalId":62515,"dealId":1152692173,"isDeleted":false,"associations":{"associatedVids":[],"associatedCompanyIds":[],"associatedDealIds":[],"associatedTicketIds":[]},"associationCreateFailures":[{"association":{"fromObjectId":1152692173,"toObjectId":27136,"associationCategory":"HUBSPOT_DEFINED","associationTypeId":3,"timestamp":null},"failReason":"INVALID_OBJECT_IDS","message":"CONTACT=27136
+        is not valid"},{"association":{"fromObjectId":1152692173,"toObjectId":8954037,"associationCategory":"HUBSPOT_DEFINED","associationTypeId":5,"timestamp":null},"failReason":"INVALID_OBJECT_IDS","message":"COMPANY=8954037
+        is not valid"}],"properties":{"hs_closed_amount_in_home_currency":{"value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_closed_amount_in_home_currency","value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"amount":{"value":"30","timestamp":1573226339932,"source":"API","sourceId":null,"versions":[{"name":"amount","value":"30","timestamp":1573226339932,"source":"API","sourceVid":[]}]},"hs_closed_amount":{"value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_closed_amount","value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_lastmodifieddate":{"value":"1573226339932","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_lastmodifieddate","value":"1573226339932","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[]}]},"hs_createdate":{"value":"1573226339932","timestamp":1573226339932,"source":"API","sourceId":"","versions":[{"name":"hs_createdate","value":"1573226339932","timestamp":1573226339932,"sourceId":"","source":"API","sourceVid":[]}]},"hs_object_id":{"value":"1152692173","timestamp":1573226339932,"source":"API","sourceId":null,"versions":[{"name":"hs_object_id","value":"1152692173","timestamp":1573226339932,"source":"API","sourceVid":[]}]},"createdate":{"value":"1573226339932","timestamp":1573226339932,"source":"API","sourceId":null,"versions":[{"name":"createdate","value":"1573226339932","timestamp":1573226339932,"source":"API","sourceVid":[]}]},"hs_projected_amount":{"value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_projected_amount","value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"amount_in_home_currency":{"value":"30","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"amount_in_home_currency","value":"30","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"days_to_close":{"value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"days_to_close","value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_deal_stage_probability":{"value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_deal_stage_probability","value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_projected_amount_in_home_currency":{"value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_projected_amount_in_home_currency","value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]}},"imports":[],"stateChanges":[]}'
+    http_version:
+  recorded_at: Fri, 08 Nov 2019 15:19:00 GMT
+- request:
+    method: put
+    uri: https://api.hubapi.com/deals/v1/deal/1152692173?hapikey=demo
+    body:
+      encoding: UTF-8
+      string: '{"properties":[{"name":"dealname","value":"super deal"}]}'
+    headers:
+      Content-Type:
+      - application/json
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Date:
+      - Fri, 08 Nov 2019 15:19:01 GMT
+      Content-Type:
+      - application/json;charset=utf-8
+      Transfer-Encoding:
+      - chunked
+      Connection:
+      - keep-alive
+      Set-Cookie:
+      - __cfduid=redacted; expires=Sat, 07-Nov-20
+        15:19:00 GMT; path=/; domain=.hubapi.com; HttpOnly
+      X-Trace:
+      - redacted
+      X-Hubspot-Ratelimit-Daily:
+      - '250000'
+      X-Hubspot-Ratelimit-Daily-Remaining:
+      - '249602'
+      X-Hubspot-Ratelimit-Interval-Milliseconds:
+      - '10000'
+      X-Hubspot-Ratelimit-Remaining:
+      - '94'
+      X-Hubspot-Ratelimit-Max:
+      - '100'
+      X-Hubspot-Ratelimit-Secondly:
+      - '10'
+      X-Hubspot-Ratelimit-Secondly-Remaining:
+      - '9'
+      Vary:
+      - Accept-Encoding
+      Access-Control-Allow-Credentials:
+      - 'false'
+      Cf-Cache-Status:
+      - DYNAMIC
+      Strict-Transport-Security:
+      - max-age=31536000; includeSubDomains; preload
+      Expect-Ct:
+      - max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
+      Server:
+      - cloudflare
+      Cf-Ray:
+      - 532885d33934b7b1-CDG
+    body:
+      encoding: UTF-8
+      string: '{"portalId":62515,"dealId":1152692173,"isDeleted":false,"associations":{"associatedVids":[],"associatedCompanyIds":[],"associatedDealIds":[],"associatedTicketIds":[]},"properties":{"hs_closed_amount_in_home_currency":{"value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_closed_amount_in_home_currency","value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"dealname":{"value":"super
+        deal","timestamp":1573226340886,"source":"API","sourceId":null,"versions":[{"name":"dealname","value":"super
+        deal","timestamp":1573226340886,"source":"API","sourceVid":[]}]},"amount":{"value":"30","timestamp":1573226339932,"source":"API","sourceId":null,"versions":[{"name":"amount","value":"30","timestamp":1573226339932,"source":"API","sourceVid":[]}]},"num_associated_contacts":{"value":"0","timestamp":1573226340383,"source":"CALCULATED","sourceId":"RollupProperties","versions":[{"name":"num_associated_contacts","value":"0","timestamp":1573226340383,"sourceId":"RollupProperties","source":"CALCULATED","sourceVid":[]}]},"createdate":{"value":"1573226339932","timestamp":1573226339932,"source":"API","sourceId":null,"versions":[{"name":"createdate","value":"1573226339932","timestamp":1573226339932,"source":"API","sourceVid":[]}]},"amount_in_home_currency":{"value":"30","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"amount_in_home_currency","value":"30","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_deal_stage_probability":{"value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_deal_stage_probability","value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"days_to_close":{"value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"days_to_close","value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_closed_amount":{"value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_closed_amount","value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_lastmodifieddate":{"value":"1573226340886","timestamp":1573226340886,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_lastmodifieddate","value":"1573226340886","timestamp":1573226340886,"source":"CALCULATED","sourceVid":[]},{"name":"hs_lastmodifieddate","value":"1573226340556","timestamp":1573226340556,"source":"CALCULATED","sourceVid":[]}]},"hs_createdate":{"value":"1573226339932","timestamp":1573226339932,"source":"API","sourceId":"","versions":[{"name":"hs_createdate","value":"1573226339932","timestamp":1573226339932,"sourceId":"","source":"API","sourceVid":[]}]},"hs_object_id":{"value":"1152692173","timestamp":1573226339932,"source":"API","sourceId":null,"versions":[{"name":"hs_object_id","value":"1152692173","timestamp":1573226339932,"source":"API","sourceVid":[]}]},"hs_projected_amount":{"value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_projected_amount","value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]},"hs_projected_amount_in_home_currency":{"value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceId":null,"versions":[{"name":"hs_projected_amount_in_home_currency","value":"0","timestamp":1573226339932,"source":"CALCULATED","sourceVid":[],"sourceMetadata":""}]}},"imports":[],"stateChanges":[]}'
+    http_version:
+  recorded_at: Fri, 08 Nov 2019 15:19:01 GMT
+recorded_with: VCR 5.0.0
diff --git a/spec/lib/hubspot/deal_spec.rb b/spec/lib/hubspot/deal_spec.rb
index eb0ff86a..22045c93 100644
--- a/spec/lib/hubspot/deal_spec.rb
+++ b/spec/lib/hubspot/deal_spec.rb
@@ -3,6 +3,7 @@
   let(:company_id) { 8954037 }
   let(:vid) { 27136 }
   let(:amount) { '30' }
+  let(:deal) { Hubspot::Deal.create!(portal_id, [company_id], [vid], { amount: amount}) }
 
   let(:example_deal_hash) do
     VCR.use_cassette("deal_example") do
@@ -28,9 +29,87 @@
     its(:vids)        { should eql [vid]}
   end
 
+  describe '.update' do
+    let(:changed_properties) { { dealname: 'super deal' } }
+
+    context 'with an existing resource' do
+      cassette
+      subject { described_class.update(deal.deal_id, changed_properties) }
+
+      it 'updates' do
+        expect(subject).to be_truthy
+        find_deal = Hubspot::Deal.find(deal.deal_id)
+        expect(find_deal['dealname']).to eq 'super deal'
+      end
+    end
+
+    context 'with an invalid resource' do
+      cassette
+      subject { described_class.update(0, changed_properties) }
+
+      it { is_expected.to be false }
+    end
+  end
+
+  describe '.update!' do
+    let(:changed_properties) { { dealname: 'super deal' } }
+
+    context 'with an existing resource' do
+      cassette
+      subject { described_class.update!(deal.deal_id, changed_properties) }
+
+      it 'updates' do
+        expect(subject).to be_truthy
+        find_deal = Hubspot::Deal.find(deal.deal_id)
+        expect(find_deal['dealname']).to eq 'super deal'
+      end
+    end
+
+    context 'with an invalid resource' do
+      cassette
+      subject { described_class.update!(0, changed_properties) }
+
+      it 'fails with an error' do
+        expect { subject }.to raise_error Hubspot::RequestError
+      end
+    end
+  end
+
+  describe '#update' do
+    let(:changed_properties) { { dealname: 'super deal' }.stringify_keys }
+
+    context 'without overlapping changes' do
+      cassette
+      subject { deal.update(changed_properties) }
+
+      it 'updates the properties' do
+        expect(subject).to be_truthy
+        changed_properties.each do |property, value|
+          expect(deal[property]).to eq value
+        end
+      end
+    end
+
+    context 'with overlapping changes' do
+      cassette
+      subject { deal.update(changed_properties) }
+      let(:overlapping_properties) { { dealname: 'old deal', amount: 6 }.stringify_keys }
+
+      before(:each) do
+        overlapping_properties.each { |property, value| deal.properties[property] = value }
+      end
+
+      it 'merges and updates the properties' do
+        expect(subject).to be_truthy
+        overlapping_properties.merge(changed_properties).each do |property, value|
+          expect(deal[property]).to eq value
+        end
+      end
+    end
+  end
+
   describe ".find" do
     cassette "deal_find"
-    let(:deal) {Hubspot::Deal.create!(portal_id, [company_id], [vid], { amount: amount})}
 
     it 'must find by the deal id' do
       find_deal = Hubspot::Deal.find(deal.deal_id)
@@ -42,7 +121,7 @@
   describe '.find_by_company' do
     cassette 'deal_find_by_company'
     let(:company) { Hubspot::Company.create(name: 'Test Company') }
-    let(:deal) { Hubspot::Deal.create!(portal_id, [company.id], [vid], { amount: amount }) }
+    let(:company_id) { company.id }
 
     it 'returns company deals' do
       deals = Hubspot::Deal.find_by_company(company)
@@ -85,8 +164,6 @@
   describe "#destroy!" do
     it "should remove from hubspot" do
       VCR.use_cassette("destroy_deal") do
-        deal = Hubspot::Deal.create!(portal_id, [company_id], [vid], {amount: amount})
-
         result = deal.destroy!
 
         assert_requested :delete, hubspot_api_url("/deals/v1/deal/#{deal.deal_id}?hapikey=demo")
diff --git a/spec/shared_examples/updateable_resource.rb b/spec/shared_examples/updateable_resource.rb
index 5bd1a006..cf1bea8f 100644
--- a/spec/shared_examples/updateable_resource.rb
+++ b/spec/shared_examples/updateable_resource.rb
@@ -84,4 +84,4 @@
       end
     end
   end
-end
\ No newline at end of file
+end