diff --git a/Rakefile b/Rakefile
index 1f33246..0a5e318 100644
--- a/Rakefile
+++ b/Rakefile
@@ -12,7 +12,7 @@ rescue LoadError => e
 end
 
 begin
-  gem 'rspec', '~> 2.4.0'
+  gem 'rspec', '~> 2.4'
   require 'rspec/core/rake_task'
 
   RSpec::Core::RakeTask.new
diff --git a/gemspec.yml b/gemspec.yml
index c7793c2..f53e090 100644
--- a/gemspec.yml
+++ b/gemspec.yml
@@ -15,5 +15,5 @@ required_ruby_version: >= 1.8.7
 
 development_dependencies:
   ore-tasks: ~> 0.4
-  rspec: ~> 2.4.0
+  rspec: ~> 2.4
   yard: ~> 0.6.0
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index f559753..302f111 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,4 +1,4 @@
-require 'rubygems'
+gem 'rspec', '~> 2.4'
 require 'rspec'
 
 require 'combinatorics/version'