diff --git a/.github/workflows/site.yml b/.github/workflows/site.yml
index 1213c1c..009d48b 100644
--- a/.github/workflows/site.yml
+++ b/.github/workflows/site.yml
@@ -27,7 +27,7 @@ jobs:
           python-version: 3.x
 
       - name: Set up build cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         id: cache
         with:
           key: ${{ runner.os }}-${{ hashFiles('.cache/**') }}