diff --git a/Gemfile b/Gemfile
index 1f90a67..94ad6dc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -39,7 +39,7 @@ end
 
 platforms :mri_18, :mingw_18 do
   group :mysql do
-    gem "mysql"
+    gem "mysql", "~> 2.8.1"
   end
 end