diff --git a/Gemfile.lock b/Gemfile.lock
index a403912..fa8c618 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -82,6 +82,7 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
+    json (2.6.3)
     loofah (2.9.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
@@ -96,8 +97,8 @@ GEM
     nokogiri (1.11.3)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
-    parallel (1.20.1)
-    parser (3.0.1.1)
+    parallel (1.22.1)
+    parser (3.1.3.0)
       ast (~> 2.4.1)
     pry (0.14.1)
       coderay (~> 1.1)
@@ -132,9 +133,9 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (~> 1.0)
-    rainbow (3.0.0)
+    rainbow (3.1.1)
     rake (13.0.3)
-    regexp_parser (2.1.1)
+    regexp_parser (2.6.1)
     rexml (3.2.5)
     rspec-core (3.10.1)
       rspec-support (~> 3.10.0)
@@ -153,17 +154,18 @@ GEM
       rspec-mocks (~> 3.10)
       rspec-support (~> 3.10)
     rspec-support (3.10.2)
-    rubocop (1.14.0)
+    rubocop (1.42.0)
+      json (~> 2.3)
       parallel (~> 1.10)
-      parser (>= 3.0.0.0)
+      parser (>= 3.1.2.1)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
-      rexml
-      rubocop-ast (>= 1.5.0, < 2.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.24.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 3.0)
-    rubocop-ast (1.5.0)
-      parser (>= 3.0.1.1)
+    rubocop-ast (1.24.1)
+      parser (>= 3.1.1.0)
     ruby-progressbar (1.11.0)
     simple_form (5.1.0)
       actionpack (>= 5.2)
@@ -185,7 +187,7 @@ GEM
     thor (1.1.0)
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
-    unicode-display_width (2.0.0)
+    unicode-display_width (2.3.0)
     websocket-driver (0.7.3)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
@@ -200,7 +202,7 @@ DEPENDENCIES
   pry (~> 0.14.0)
   rake (~> 13.0.3)
   rspec-rails (~> 5.0.0)
-  rubocop (~> 1.14.0)
+  rubocop (~> 1.42.0)
   simple_form (>= 5.1.0)
   simplecov (~> 0.21.2)
   sqlite3 (~> 1.4.2)
diff --git a/autocomplete_zipcode.gemspec b/autocomplete_zipcode.gemspec
index 73f219e..0084d97 100644
--- a/autocomplete_zipcode.gemspec
+++ b/autocomplete_zipcode.gemspec
@@ -28,7 +28,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'pry', '~> 0.14.0'
   spec.add_development_dependency 'rake', '~> 13.0.3'
   spec.add_development_dependency 'rspec-rails', '~> 5.0.0'
-  spec.add_development_dependency 'rubocop', '~> 1.14.0'
+  spec.add_development_dependency 'rubocop', '~> 1.42.0'
   spec.add_development_dependency 'simplecov', '~> 0.21.2'
   spec.add_development_dependency 'simple_form', '>= 5.1.0'
   spec.add_development_dependency 'sqlite3', '~> 1.4.2'