diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 431854edb9d26232229e0ec1ebd6ac14d48cd8cd..0adb368e0c110f807f77e45856eeaa1b6279ab45 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -27,6 +27,9 @@ trigger:
   stage: pipeline-trigger
   trigger:
     project: ki_lab/project_frontend
+  when: manual
+  only:
+    - main
 
 #build-job:       # This job runs in the build stage, which runs first.
 #  stage: build