diff --git a/lib/nexmo_developer/Gemfile b/lib/nexmo_developer/Gemfile
index 03e729938..150ba0b20 100644
--- a/lib/nexmo_developer/Gemfile
+++ b/lib/nexmo_developer/Gemfile
@@ -98,7 +98,7 @@ gem 'readingtime', '0.4.0'
 gem 'addressable', '~> 2.8', require: false
 
 # Automatic Ruby code style checking tool. Aims to enforce the community-driven Ruby Style Guide.
-gem 'rubocop', '~> 1.10.0', require: false
+gem 'rubocop', '~> 1.56.2', require: false
 gem 'rubocop-rails', '~> 2.9', require: false
 
 # Titleize modifies the existing Titleize Rails functionality to better suit our needs
diff --git a/lib/nexmo_developer/Gemfile.lock b/lib/nexmo_developer/Gemfile.lock
index 0bf351d9a..02d6710be 100644
--- a/lib/nexmo_developer/Gemfile.lock
+++ b/lib/nexmo_developer/Gemfile.lock
@@ -100,6 +100,7 @@ GEM
     barnes (0.0.9)
       multi_json (~> 1)
       statsd-ruby (~> 1.1)
+    base64 (0.1.1)
     bcrypt (3.1.16)
     bcrypt (3.1.16-java)
     better_errors (2.9.1)
@@ -276,6 +277,7 @@ GEM
       activerecord
       kaminari-core (= 1.2.1)
     kaminari-core (1.2.1)
+    language_server-protocol (3.17.0.3)
     listen (3.4.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
@@ -362,9 +364,10 @@ GEM
       sawyer (~> 0.8.0, >= 0.5.3)
     oj (3.11.2)
     orm_adapter (0.5.0)
-    parallel (1.20.1)
-    parser (3.0.0.0)
+    parallel (1.23.0)
+    parser (3.2.2.3)
       ast (~> 2.4.1)
+      racc
     pg (1.2.3)
     pry (0.14.1)
       coderay (~> 1.1)
@@ -417,7 +420,7 @@ GEM
       method_source
       rake (>= 0.13)
       thor (~> 1.0)
-    rainbow (3.0.0)
+    rainbow (3.1.1)
     rake (13.0.3)
     ransack (2.4.2)
       activerecord (>= 5.2.4)
@@ -431,7 +434,7 @@ GEM
       json
     redcarpet (3.5.1)
     redis (4.3.1)
-    regexp_parser (2.0.3)
+    regexp_parser (2.8.1)
     request_store (1.5.0)
       rack (>= 1.4)
     responders (3.0.1)
@@ -460,7 +463,7 @@ GEM
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 4.0)
       netrc (~> 0.8)
-    rexml (3.2.5)
+    rexml (3.2.6)
     rouge (2.0.7)
     rspec (3.10.0)
       rspec-core (~> 3.10.0)
@@ -488,17 +491,20 @@ GEM
       awesome_print (> 1.0.0)
       rspec (> 3.0.0)
     rspec-support (3.10.2)
-    rubocop (1.10.0)
+    rubocop (1.56.2)
+      base64 (~> 0.1.1)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
-      parser (>= 3.0.0.0)
+      parser (>= 3.2.2.3)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
-      rexml
-      rubocop-ast (>= 1.2.0, < 2.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.28.1, < 2.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 3.0)
-    rubocop-ast (1.4.1)
-      parser (>= 2.7.1.5)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.29.0)
+      parser (>= 3.2.1.0)
     rubocop-rails (2.9.1)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
@@ -577,7 +583,7 @@ GEM
       unf_ext
     unf (0.1.4-java)
     unf_ext (0.0.7.7)
-    unicode-display_width (2.0.0)
+    unicode-display_width (2.4.2)
     unicode_utils (1.4.0)
     warden (1.2.9)
       rack (>= 2.0.9)
@@ -666,7 +672,7 @@ DEPENDENCIES
   rspec-collection_matchers
   rspec-rails (~> 5.0)
   rspec-snapshot (~> 2.0.0)
-  rubocop (~> 1.10.0)
+  rubocop (~> 1.56.2)
   rubocop-rails (~> 2.9)
   ruby-progressbar
   sassc-rails (~> 2.1)