diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0ea9c5c..9d8816a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -24,6 +24,8 @@ variables:
 
 composer_update:
   stage: update
+  rules:
+    - if: '$CI_COMMIT_BRANCH == "main"'
   image: composer:latest
   interruptible: true # allows to stop the job if a newer pipeline starts, saving resources and allowing new jobs to start because job concurrency is limited
   script: