diff --git a/k8s/monica/mysql.yaml b/k8s/monica/mysql.yaml
index 354f9ca..deb0757 100644
--- a/k8s/monica/mysql.yaml
+++ b/k8s/monica/mysql.yaml
@@ -27,7 +27,7 @@ spec:
         app: mysql
     spec:
       containers:
-      - image: docker.io/library/mysql:9
+      - image: docker.io/library/mysql:5.7
         name: mysql
         resources: {}
         ports: