diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f97feca9f7b..87c3944dcce 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -75,7 +75,7 @@ stages:
 
 .use-mysql: &use-mysql
   services:
-    - mysql:latest
+    - mysql:5.7
     - redis:alpine
 
 .rails5-variables: &rails5-variables