diff --git a/Gemfile b/Gemfile
index 177c20b..c69443d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,15 +4,15 @@ source 'https://rubygems.org'
 gemspec
 
 group :development do
-  gem "rake",     "~> 0.9.2"
-  gem "rdoc",     "~> 3.9"
-  gem "yard",     "~> 0.8.0"
+  gem "rake"
+  gem "rdoc"
+  gem "yard"
 end
 
 group :test do
-  gem "cucumber", "~> 1.2.0"
+  gem "cucumber"
   gem "fivemat"
-  gem "aruba",    "~> 0.4.11"
-  gem "rspec",    "~> 2.7"
+  gem "aruba"
+  gem "rspec"
   gem "simplecov"
 end