diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 8d75854..e819b3b 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -7,7 +7,7 @@ on:
     branches: [ "main" ]
   workflow_dispatch:
   schedule:
-    - cron: '0 0 * * 0'
+    - cron: '0 0 1-31/15 * *'
 
 env:
   OPENAI_API_TOKEN: ${{ secrets.OPENAI_API_TOKEN }}