diff --git a/.github/workflows/product-quality.yml b/.github/workflows/product-quality.yml
index 3567874..aa8d877 100644
--- a/.github/workflows/product-quality.yml
+++ b/.github/workflows/product-quality.yml
@@ -45,7 +45,7 @@ jobs:
       - uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
       - run: echo "XDG_CACHE_HOME=${RUNNER_TEMP}/docs-cache" >> "$GITHUB_ENV"
       - run: uv sync --locked --dev
-      - uses: actions/cache@caa296126883cff596d87d8935842f9db880ef25 # v5
+      - uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         id: index
         with:
           path: ${{ runner.temp }}/docs-cache/mcp-python-docs/index.db