diff --git a/dp_np.yaml b/dp_np.yaml
index db76590..51513e1 100644
--- a/dp_np.yaml
+++ b/dp_np.yaml
@@ -15,7 +15,7 @@ spec:
     spec:
       containers:
         - name: tekton-demo
-          image: harbor.icurfer.com/open/tekton-demo:latest
+          image: harbor.icurfer.com/open/tekton-demo@sha256:87a0df2bc8c27c0eca46387a11f99b0d71df50d6da3ded3c45c57d0d59368c83
           imagePullPolicy: Always
           ports:
             - containerPort: 80
diff --git a/sample-build/01-serviceaccount.yaml b/sample-build/01-serviceaccount.yaml
index cb28647..cfedb07 100644
--- a/sample-build/01-serviceaccount.yaml
+++ b/sample-build/01-serviceaccount.yaml
@@ -6,8 +6,8 @@ metadata:
   namespace: tekton-demo
 secrets:
   - name: harbor-dockerconfig   # Harbor 인증용 Secret
-imagePullSecrets:
-  - name: harbor-dockerconfig   # Docker 인증 정보 사용
+# imagePullSecrets:
+#   - name: harbor-dockerconfig   # Docker 인증 정보 사용
 
 ---
 # Tekton 파이프라인 실행 및 리소스 접근 권한(Role)