diff --git a/Gemfile.lock b/Gemfile.lock
index a403912..a84dcfa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -153,7 +153,7 @@ GEM
       rspec-mocks (~> 3.10)
       rspec-support (~> 3.10)
     rspec-support (3.10.2)
-    rubocop (1.14.0)
+    rubocop (1.15.0)
       parallel (~> 1.10)
       parser (>= 3.0.0.0)
       rainbow (>= 2.2.2, < 4.0)
@@ -200,7 +200,7 @@ DEPENDENCIES
   pry (~> 0.14.0)
   rake (~> 13.0.3)
   rspec-rails (~> 5.0.0)
-  rubocop (~> 1.14.0)
+  rubocop (~> 1.15.0)
   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..88b3805 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', '~> 1.15.0'
   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'