diff --git a/Gemfile b/Gemfile
index 2f2113d..47bd424 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,3 +4,15 @@ source "https://rubygems.org"
 
 # Specify your gem's dependencies in bump_gem_version.gemspec
 gemspec
+
+group :development, :test do
+  gem "minitest"
+
+  gem "rake"
+
+  gem "rubocop"
+
+  gem "rubocop-minitest"
+
+  gem "rubocop-rake"
+end
diff --git a/Gemfile.lock b/Gemfile.lock
index a29b822..d97ed85 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,11 +47,11 @@ PLATFORMS
 
 DEPENDENCIES
   bump_gem_version!
-  minitest (~> 5.18)
-  rake (~> 13.0)
-  rubocop (~> 1.54)
-  rubocop-minitest (~> 0.31)
-  rubocop-rake (~> 0.6)
+  minitest
+  rake
+  rubocop
+  rubocop-minitest
+  rubocop-rake
 
 BUNDLED WITH
    2.4.17
diff --git a/bump_gem_version.gemspec b/bump_gem_version.gemspec
index 58ab2cc..404a3e5 100644
--- a/bump_gem_version.gemspec
+++ b/bump_gem_version.gemspec
@@ -28,9 +28,4 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_runtime_dependency "thor", "~> 1.2"
-  spec.add_development_dependency "minitest", "~> 5.18"
-  spec.add_development_dependency "rake", "~> 13.0"
-  spec.add_development_dependency "rubocop", "~> 1.54"
-  spec.add_development_dependency "rubocop-minitest", "~> 0.31"
-  spec.add_development_dependency "rubocop-rake", "~> 0.6"
 end