diff --git a/.github/workflows/stress.yml b/.github/workflows/stress.yml
index cc06dba2..7f7e76d2 100644
--- a/.github/workflows/stress.yml
+++ b/.github/workflows/stress.yml
@@ -1,7 +1,5 @@
 name: Stress tests
-on:
-    workflow_dispatch:
-    pull_request:
+on: workflow_dispatch
 
 jobs:
   build_tarballs: