diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a4ef50f..9f51f05 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -69,6 +69,6 @@ jobs:
       run: |
         gem list --silent -i bundler -v '~> 2' || gem install bundler -v '~> 2' --no-document
         bundle config path vendor/bundle
-        bundle install --jobs 4 --retry 3
+        bundle install --without development --jobs 4 --retry 3
     - name: Run tests
       run: bundle exec rspec ./spec/*
diff --git a/Gemfile b/Gemfile
index 0eb63dd..6e58404 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,13 +5,13 @@ gem 'rake', '~> 11.1'
 gem 'yard', '>= 0.9'
 
 group :development do
+  gem 'irb'
   gem 'pry'
 end
 
 group :test do
-  gem 'rspec', '>= 3.8'
-  gem 'rubocop', '>= 0.60'
-  gem 'irb'
+  gem 'rspec', '~> 3.10'
+  gem 'rubocop', '~> 1.7'
 end
 
 gemspec