diff --git a/Gemfile b/Gemfile
index a116810d..02063034 100644
--- a/Gemfile
+++ b/Gemfile
@@ -33,7 +33,7 @@ platforms :mri do
   end
 
   group :mysql2 do
-    gem "mysql2"
+    gem "mysql2", "~> 0.2.7"
   end
   
   group :postgres do