diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index 1dc8ec33be0..11465b35122 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -88,7 +88,7 @@ jobs:
 
     services:
       mysql:
-        image: mariadb
+        image: mariadb:10.5
         ports:
           - 4444:3306/tcp
         env: