diff --git a/.github/workflows/famedly-tests.yml b/.github/workflows/famedly-tests.yml
index 052a48f452..cdc7ff2467 100644
--- a/.github/workflows/famedly-tests.yml
+++ b/.github/workflows/famedly-tests.yml
@@ -98,7 +98,7 @@ jobs:
       # Cribbed from
       # https://github.com/AustinScola/mypy-cache-github-action/blob/85ea4f2972abed39b33bd02c36e341b28ca59213/src/restore.ts#L10-L17
       - name: Restore/persist mypy's cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             .mypy_cache