diff --git a/infra/cert-manager.yaml b/infra/cert-manager.yaml
index a4276a4..57267ed 100644
--- a/infra/cert-manager.yaml
+++ b/infra/cert-manager.yaml
@@ -11,7 +11,7 @@ spec:
   sources:
     - repoURL: https://charts.jetstack.io
       chart: cert-manager
-      targetRevision: v1.14.5
+      targetRevision: v1.21.0
       helm:
         releaseName: cert-manager
         values: |