diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 6674ec9..ad2d8dd 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -1,6 +1,6 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2018-03-14 14:57:44 -0400 using RuboCop version 0.53.0.
+# on 2018-03-14 14:59:23 -0400 using RuboCop version 0.53.0.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
diff --git a/Gemfile b/Gemfile
index 7c95f65..9d8509f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,7 +10,16 @@ else
 end
 
 group :test do
+  gem 'rack-test'
   gem 'ruby-grape-danger', '~> 0.1.0', require: false
   gem 'sequel', '~> 4.37', require: false
   gem 'sqlite3'
 end
+
+group :development, :test do
+  gem 'guard-rspec'
+  gem 'listen', '~> 3.0.7'
+  gem 'rake'
+  gem 'rspec'
+  gem 'rubocop', '0.53.0'
+end
diff --git a/grape-active_model_serializers.gemspec b/grape-active_model_serializers.gemspec
index 9d68460..4c6cf0a 100644
--- a/grape-active_model_serializers.gemspec
+++ b/grape-active_model_serializers.gemspec
@@ -18,11 +18,4 @@ Gem::Specification.new do |gem|
 
   gem.add_dependency 'grape', '>= 0.8.0'
   gem.add_dependency 'active_model_serializers', '>= 0.10.0'
-
-  gem.add_development_dependency 'listen', '~> 3.0.7'
-  gem.add_development_dependency 'rspec'
-  gem.add_development_dependency 'rack-test'
-  gem.add_development_dependency 'rake'
-  gem.add_development_dependency 'guard-rspec'
-  gem.add_development_dependency 'rubocop', '0.53.0'
 end