diff --git a/.github/workflows/flake_check.yml b/.github/workflows/flake_check.yml
index 0f51cbd..11c30ea 100644
--- a/.github/workflows/flake_check.yml
+++ b/.github/workflows/flake_check.yml
@@ -9,7 +9,7 @@ jobs:
   flake_check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@6a9a9e84a173d90b3ffb42c5ddaf9ea033fad011 # v23
         with:
           extra_nix_config: |