diff --git a/Gemfile b/Gemfile
index 46428ed..b43a6bc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -24,7 +24,7 @@ group :development, :unit_tests do
   gem 'metadata-json-lint',                               '~> 2.4'
   gem 'puppetlabs_spec_helper',                           '~> 2.15'
   gem 'rspec-puppet',                                     '~> 2.6'
-  gem 'rubocop',                                          '~> 0.87'
+  gem 'rubocop',                                          '~> 0.91'
   gem 'tty-command',                                      '~> 0.6'
   gem 'tty-file',                                         '~> 0.9'
   gem 'tty-prompt',                                       '~> 0.21'
diff --git a/Gemfile.lock b/Gemfile.lock
index 32ede46..f810115 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -123,7 +123,7 @@ GEM
       puppet_forge (~> 2.3.0)
     rainbow (3.0.0)
     rake (13.0.1)
-    regexp_parser (1.7.1)
+    regexp_parser (1.8.0)
     rexml (3.2.4)
     rspec (3.9.0)
       rspec-core (~> 3.9.0)
@@ -140,17 +140,17 @@ GEM
     rspec-puppet (2.7.8)
       rspec
     rspec-support (3.9.3)
-    rubocop (0.87.0)
+    rubocop (0.91.1)
       parallel (~> 1.10)
       parser (>= 2.7.1.1)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.7)
       rexml
-      rubocop-ast (>= 0.1.0, < 1.0)
+      rubocop-ast (>= 0.4.0, < 1.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 2.0)
-    rubocop-ast (0.1.0)
-      parser (>= 2.7.0.1)
+    rubocop-ast (0.4.2)
+      parser (>= 2.7.1.4)
     ruby-progressbar (1.10.1)
     rugged (1.0.1)
     semantic_puppet (1.0.2)
@@ -205,7 +205,7 @@ DEPENDENCIES
   puppetlabs_spec_helper (~> 2.15)
   r10k (~> 3.5)
   rspec-puppet (~> 2.6)
-  rubocop (~> 0.87)
+  rubocop (~> 0.91)
   rugged (~> 1.0)
   tty-command (~> 0.6)
   tty-file (~> 0.9)