diff --git a/manifests/mcp/mcp-auth-proxy.yaml b/manifests/mcp/mcp-auth-proxy.yaml
index d75a047..732db19 100644
--- a/manifests/mcp/mcp-auth-proxy.yaml
+++ b/manifests/mcp/mcp-auth-proxy.yaml
@@ -18,3 +18,9 @@ spec:
       selfHeal: true
     syncOptions:
       - CreateNamespace=true
+  ignoreDifferences:
+    - group: external-secrets.io
+      kind: ExternalSecret
+      jsonPointers:
+        - /spec/target/template/mergePolicy
+        - /spec/target/template/engineVersion