diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 9547e86..78d9abf 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
+        uses: actions/checkout@44c2b7a8a4ea60a981eaca3cf939b5f4305c123b
       - uses: cachix/install-nix-action@8887e596b4ee1134dae06b98d573bd674693f47c
       - name: Build
         run: nix-shell --pure --run 'make SPHINXOPTS='-W' html'