diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a1c45e0f33..b9c97704ce 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,11 +1,13 @@
 include:
   - template: Security/SAST.gitlab-ci.yml
   
-# copied from https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/templates/Workflows/MergeRequest-Pipelines.gitlab-ci.yml
 workflow:
   rules:
     # required to enable merge request pipelines: https://docs.gitlab.com/ee/ci/pipelines/merge_request_pipelines.html#prerequisites
-    - if: $CI_MERGE_REQUEST_IID
+    - if: $CI_PIPELINE_SOURCE == "merge_request_event"
+    # to prevent duplicate pipelines in MRs: https://docs.gitlab.com/ee/ci/yaml/workflow.html#switch-between-branch-pipelines-and-merge-request-pipelines
+    - if: $CI_COMMIT_BRANCH && $CI_OPEN_MERGE_REQUESTS
+      when: never
     - if: $CI_COMMIT_TAG
     - if: $CI_COMMIT_BRANCH