diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 75573cb7..a22301fe 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -1,5 +1,11 @@
 name: Tests
-on: [push, pull_request]
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+  schedule:
+    - cron: '0 4 * * *'
 
 jobs:
   test: