diff --git a/.github/workflows/expire-caches.yml b/.github/workflows/expire-caches.yml
index 5322523..138bca8 100644
--- a/.github/workflows/expire-caches.yml
+++ b/.github/workflows/expire-caches.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Clean up obsolete caches
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             const cachePrefixes = new Map([