diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 53dac09a973f4ae3ef736b2eb57c5b0359a9e1a7..b0e60f378e190aa54b236c5aefd25443e58bd0ac 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,7 +1,9 @@
 name: ci
 on:
-  - push
-  - pull_request
+  push:
+  pull_request:
+  schedule:
+    - cron: 0 0 * * *
 
 defaults:
   run: