diff --git a/tasks/docker-registry/task.yaml b/tasks/docker-registry/task.yaml
index 21896db..e98bc76 100644
--- a/tasks/docker-registry/task.yaml
+++ b/tasks/docker-registry/task.yaml
@@ -61,8 +61,15 @@ spec:
 
         echo "🔐 Writing Docker config for $REGISTRY..."
         mkdir -p /tekton/home/.docker
-        echo "{\"auths\": {\"$REGISTRY\": {\"auth\": \"$(echo -n "$USERNAME:$PASSWORD" | base64)"}}}" \
-          > /tekton/home/.docker/config.json
+        cat > /tekton/home/.docker/config.json <<EOF
+        {
+          "auths": {
+            "$REGISTRY": {
+              "auth": "$(echo -n "$USERNAME:$PASSWORD" | base64)"
+            }
+          }
+        }
+        EOF
 
     # 🏗️ Kaniko 공식 이미지 실행
     - name: kaniko-build