diff --git a/examples/advanced/tidb-monitor.yaml b/examples/advanced/tidb-monitor.yaml
index 41724c9ab5..8911a0999d 100644
--- a/examples/advanced/tidb-monitor.yaml
+++ b/examples/advanced/tidb-monitor.yaml
@@ -274,7 +274,7 @@ spec:
     ## ImagePullPolicy of grafana.
     # imagePullPolicy: IfNotPresent
     ## Grafana version.
-    version: v7.5.11
+    version: 7.5.11
     ## Describes the compute resource requirements and limits of grafana.
     ## Ref: https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/
     # requests:
diff --git a/manifests/monitor/tidb-monitor.yaml b/manifests/monitor/tidb-monitor.yaml
index 6fe95bdcac..2e45fa9871 100644
--- a/manifests/monitor/tidb-monitor.yaml
+++ b/manifests/monitor/tidb-monitor.yaml
@@ -22,7 +22,7 @@ spec:
       portName: http-prometheus
   grafana:
     baseImage: grafana/grafana
-    version: 7.5.7
+    version: 7.5.11
     imagePullPolicy: IfNotPresent
     logLevel: info
     #limits: