diff --git a/.github/workflows/merger.yml b/.github/workflows/merger.yml
index 50b56b4..3fe39e5 100644
--- a/.github/workflows/merger.yml
+++ b/.github/workflows/merger.yml
@@ -1,7 +1,7 @@
 name: Merges pull requests
 on:
   schedule:
-    - cron: '* * * * *'
+    - cron: '*/20 * * * *'
 
 jobs:
   pull-request-merger: