diff --git a/.github/workflows/update-dependencies.yml b/.github/workflows/update-dependencies.yml
index dff17351..1b77f657 100644
--- a/.github/workflows/update-dependencies.yml
+++ b/.github/workflows/update-dependencies.yml
@@ -1,6 +1,9 @@
 name: Update dependencies
 
-on: workflow_dispatch
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 6 * * 1'  # "At 06:00 on Monday."
 
 jobs:
   update-dependencies: