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 f59b8e94b..47a2b5308 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
@@ -13,10 +13,8 @@ spec:
     name: mariadb-pr-review-password
     key: mcserver-password
 
-  image:
-    repository: mariadb
-    tag: "10.11.4"
-    pullPolicy: IfNotPresent
+  image: mariadb:10.11.4"
+  imagePullPolicy: IfNotPresent
 
   port: 3306
 
diff --git a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/cluster-wide-apps/app-of-other-apps/mariadb-operator.yaml b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/cluster-wide-apps/app-of-other-apps/mariadb-operator.yaml
index 5988cd6dc..f79d75c38 100644
--- a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/cluster-wide-apps/app-of-other-apps/mariadb-operator.yaml
+++ b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/cluster-wide-apps/app-of-other-apps/mariadb-operator.yaml
@@ -8,7 +8,7 @@ spec:
   source:
     chart: mariadb-operator
     repoURL: https://mariadb-operator.github.io/mariadb-operator
-    targetRevision: 0.20.0
+    targetRevision: 0.22.0
     helm:
       releaseName: mariadb-operator
       values: |
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 def0f07da..e0c88f03e 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
@@ -14,10 +14,8 @@ spec:
     name: mariadb
     key: mcserver-password
 
-  image:
-    repository: mariadb
-    tag: "10.11.4"
-    pullPolicy: IfNotPresent
+  image: mariadb:10.11.4"
+  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 524e251b3..0179d3fe5 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
@@ -14,10 +14,8 @@ spec:
     name: mariadb
     key: mcserver-password
 
-  image:
-    repository: mariadb
-    tag: "10.11.4"
-    pullPolicy: IfNotPresent
+  image: mariadb:10.11.4"
+  imagePullPolicy: IfNotPresent
 
   port: 3306