diff --git a/projects/core/project.yml b/projects/core/project.yml
index 7b3d9858..4ee61008 100644
--- a/projects/core/project.yml
+++ b/projects/core/project.yml
@@ -75,7 +75,7 @@ apps:
   namespace: cert-manager
   repoURL: https://charts.jetstack.io
   chart: cert-manager
-  targetRevision: v1.15.3
+  targetRevision: v1.15.1
   secrets:
   - name: cert-manager-vault-approle
     keys: