diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 805e369..4c790ef 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -37,4 +37,4 @@ build-image:
     - docker buildx use arm_builder
     - docker buildx inspect --bootstrap
   rules:
-    - if: '$NEED_UPDATE = "true"'
+    - if: '$NEED_UPDATE == "true"'