diff --git a/apps/grafana-operator.yaml b/apps/grafana-operator.yaml
index 76d4403..1db97f8 100644
--- a/apps/grafana-operator.yaml
+++ b/apps/grafana-operator.yaml
@@ -18,6 +18,6 @@ spec:
   source:
     repoURL: ghcr.io/grafana/helm-charts
     chart: grafana-operator
-    targetRevision: 5.21.3
+    targetRevision: 5.21.4
     helm:
       valuesObject: {}