diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5542e7f4..2198d27d 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -47,7 +47,7 @@ test:
     key: '$CI_COMMIT_SHORT_SHA'
     policy: pull
   script:
-    - yarn test
+    - yarn test --detectOpenHandles
 
 docker:
   stage: release