diff --git a/sample-build/06-trigger-binding.yaml b/sample-build/06-trigger-binding.yaml
index cda1c29..318dac2 100644
--- a/sample-build/06-trigger-binding.yaml
+++ b/sample-build/06-trigger-binding.yaml
@@ -5,10 +5,15 @@ metadata:
   name: docker-build-binding
   namespace: tekton-demo
 spec:
+  interceptors:
+    - cel:
+        overlays:
+          - key: short_sha
+            expression: "body.head_commit.id.substring(0,7)"
   params:
     - name: git-url
       value: $(body.repository.clone_url)
     - name: git-revision
       value: $(body.ref)
     - name: commit-sha
-      value: $(body.head_commit.id[0:7])  # ✅ 첫 7자 추출
\ No newline at end of file
+      value: $(extensions.short_sha)
\ No newline at end of file