diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fe77546b..aaed2bff 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,6 +4,12 @@ on:
   push:
   pull_request:
   workflow_dispatch:
+  schedule:
+    - cron: '0 0 1 1 *'
+    - cron: '0 0 1 4 *'
+    - cron: '0 0 30 6 *'
+    - cron: '0 0 28 9 *'
+    - cron: '0 0 27 12 *'
 
 jobs:
   macOS: