diff --git a/apps/templates/cert-manager-helm.yaml b/apps/templates/cert-manager-helm.yaml
index f7894ad..5593a67 100644
--- a/apps/templates/cert-manager-helm.yaml
+++ b/apps/templates/cert-manager-helm.yaml
@@ -12,7 +12,7 @@ spec:
   project: default
   source:
     repoURL: https://charts.jetstack.io
-    targetRevision: v1.15.5
+    targetRevision: v1.21.1
     chart: cert-manager
     helm:
       parameters: