diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 268570be1f969d1e20ee7df0df1a239171bafde8..a74364b2ad9888184f2d723c5d89d147133c8a86 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,7 +5,8 @@ stages:
 
 build-job:
   only: 
-    refs: main
+    refs:
+      - main
   stage: build
   script:
     - stack build