diff --git a/.github/workflows/run-tox.yml b/.github/workflows/run-tox.yml
index cdee4c2..0084a56 100644
--- a/.github/workflows/run-tox.yml
+++ b/.github/workflows/run-tox.yml
@@ -6,6 +6,8 @@ on:
     branches:
       - main
   workflow_dispatch:
+  schedule:
+    - cron: "0 2 15 1,7 *"
 
 jobs:
   build: