diff --git a/lib/sendgrid/version.rb b/lib/sendgrid/version.rb
index fee10481..7947e20a 100644
--- a/lib/sendgrid/version.rb
+++ b/lib/sendgrid/version.rb
@@ -1,3 +1,3 @@
 module SendGrid
-  VERSION = '6.5.2'.freeze
+  VERSION = '6.6.0'.freeze
 end
diff --git a/test/sendgrid/test_sendgrid-ruby.rb b/test/sendgrid/test_sendgrid-ruby.rb
index 42f78b12..2a1c7451 100644
--- a/test/sendgrid/test_sendgrid-ruby.rb
+++ b/test/sendgrid/test_sendgrid-ruby.rb
@@ -33,7 +33,7 @@ def test_init
     assert_equal(test_headers, sg.request_headers)
     assert_equal('v3', sg.version)
     assert_equal(subuser, sg.impersonate_subuser)
-    assert_equal('6.5.2', SendGrid::VERSION)
+    assert_equal('6.6.0', SendGrid::VERSION)
     assert_instance_of(SendGrid::Client, sg.client)
     assert_equal({}, sg.http_options)
   end