diff --git a/.github/workflows/convert-schemes.yaml b/.github/workflows/convert-schemes.yaml
index 5ddc95f..633444b 100644
--- a/.github/workflows/convert-schemes.yaml
+++ b/.github/workflows/convert-schemes.yaml
@@ -1,12 +1,9 @@
 name: Convert YAML to JSON
 
 on:
-  push:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - main
+  workflow_dispatch:
+  schedule:
+    - cron: "0 3 * * sat" # every saturday at 3AM
 
 jobs:
   nix: