diff --git a/.github/workflows/build-docs.yml b/.github/workflows/build-docs.yml
index c595f8e..1df83db 100644
--- a/.github/workflows/build-docs.yml
+++ b/.github/workflows/build-docs.yml
@@ -28,7 +28,7 @@ jobs:
           python-version: '3.x'
 
       - name: Cache MkDocs
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           key: mkdocs-material-${{ github.run_id }}
           path: .cache