Gemfile in PlayRockPaperScissorsGame-1.5.2 vs Gemfile in PlayRockPaperScissorsGame-1.5.3

@@ -1,11 +1,11 @@
 source 'https://rubygems.org'
 ruby '2.4.0'
 platform :ruby do
 	gemspec
 	group :test do
-		gem 'bundler' , '>= 1.14.6'  , :require => true
-		gem 'colorize', '>= 0.8.1'   , :require => true
-		gem 'rake'    , '>= 12.0.0'  , :require => true
-		gem 'rvm'     , '>= 1.11.3.9', :require => true
+		gem 'bundler' , '~> 1.14.6'  , :require => true
+		gem 'colorize', '~> 0.8.1'   , :require => true
+		gem 'rake'    , '~> 12.0.0'  , :require => true
+		gem 'rvm'     , '~> 1.11.3.9', :require => true
 	end
 end
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