diff --git a/infra/portfolio/base/kustomization.yaml b/infra/portfolio/base/kustomization.yaml
index 6f84131..cc9dc18 100644
--- a/infra/portfolio/base/kustomization.yaml
+++ b/infra/portfolio/base/kustomization.yaml
@@ -8,11 +8,10 @@ resources:
 - service.yaml
 - ingress.yaml
 
-# ArgoCD Image Updater configuration
+# ArgoCD Image Updater configuration - for tag updates
 images:
 - name: forgejo.riotpiao.com/rock/portfolio
   newTag: latest
 
-# Decrypt secrets via SOPS before applying
-sops:
-  version: 3
+# Note: SOPS decryption is handled by ArgoCD repo-server plugin,
+# not via kustomization.yaml, to allow Image Updater to parse this file