diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 008636bd..24998be1 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -23,7 +23,7 @@ jobs:
           pip install tox tox-gh-actions
 
       # python cache
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}