diff --git a/Gemfile b/Gemfile
index 5c49f68a..43c0d13f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,11 +11,11 @@ group :development do
 end
 
 group :test do
-  gem 'rspec', '~> 3.0'
+  gem 'rspec', '~> 3.4.0'
 end
 
 group :development, :test do
-  gem 'simplecov', '~> 0.8'
+  gem 'simplecov', '~> 0.8.0'
 end
 
 platform :rbx do