diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a256cdb..1835110 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,6 +1,10 @@
 name: build
 
-on: [push, pull_request]
+on:
+  push:
+  pull_request:
+  schedule:
+  - cron: '0 0 1 * *' # monthly
 
 jobs:
   build-native: