diff --git a/argocd/overlays/argocd-notifications-controller-patch.yaml b/argocd/overlays/argocd-notifications-controller-patch.yaml
index d17fadd..8ea25e6 100644
--- a/argocd/overlays/argocd-notifications-controller-patch.yaml
+++ b/argocd/overlays/argocd-notifications-controller-patch.yaml
@@ -3,7 +3,7 @@ kind: Deployment
 metadata:
   name: argocd-notifications-controller
   namespace: argocd
-$patch: replace
+$patch: merge
 spec:
   template:
     spec: