diff --git a/seichi-onp-k8s/manifests/seichi-kubernetes/app-templates/seichi-debug-minecraft-on-seichiassist-pr/templates/mariadb/mariadb.yaml b/seichi-onp-k8s/manifests/seichi-kubernetes/app-templates/seichi-debug-minecraft-on-seichiassist-pr/templates/mariadb/mariadb.yaml
index 67d09eb98..0f9793d44 100644
--- a/seichi-onp-k8s/manifests/seichi-kubernetes/app-templates/seichi-debug-minecraft-on-seichiassist-pr/templates/mariadb/mariadb.yaml
+++ b/seichi-onp-k8s/manifests/seichi-kubernetes/app-templates/seichi-debug-minecraft-on-seichiassist-pr/templates/mariadb/mariadb.yaml
@@ -13,7 +13,7 @@ spec:
     name: mariadb-pr-review-password
     key: mcserver-password
 
-  image: mariadb:10.11.6"
+  image: mariadb:10.11.6
   imagePullPolicy: IfNotPresent
 
   port: 3306
diff --git a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-debug-minecraft/mariadb/mariadb.yaml b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-debug-minecraft/mariadb/mariadb.yaml
index cb106fa84..2db54ec32 100644
--- a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-debug-minecraft/mariadb/mariadb.yaml
+++ b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-debug-minecraft/mariadb/mariadb.yaml
@@ -14,7 +14,7 @@ spec:
     name: mariadb
     key: mcserver-password
 
-  image: mariadb:10.11.6"
+  image: mariadb:10.11.6
   imagePullPolicy: IfNotPresent
 
   port: 3306
diff --git a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-minecraft/mariadb/mariadb.yaml b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-minecraft/mariadb/mariadb.yaml
index cd13d0b4b..b65022ac3 100644
--- a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-minecraft/mariadb/mariadb.yaml
+++ b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-minecraft/mariadb/mariadb.yaml
@@ -14,7 +14,7 @@ spec:
     name: mariadb
     key: mcserver-password
 
-  image: mariadb:10.11.6"
+  image: mariadb:10.11.6
   imagePullPolicy: IfNotPresent
 
   port: 3306