diff --git a/.github/workflows/trigger_on_push_master.yml b/.github/workflows/trigger_on_push_master.yml
index b2d7c1630..8cbf69b3a 100644
--- a/.github/workflows/trigger_on_push_master.yml
+++ b/.github/workflows/trigger_on_push_master.yml
@@ -3,6 +3,8 @@ on:
   push:
     branches:
       - master
+  schedule:
+      - cron: '0 0 * * 1' # run once a week on monday midnight to prevent the cache from being cleared
 
 concurrency:
   group: ci-${{github.actor}}-${{github.head_ref || github.run_number}}-${{github.ref}}-trigger_on_push_master