diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 50ce046..b9b01bd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
-      - uses: DeterminateSystems/flake-checker-action@v4
+      - uses: DeterminateSystems/flake-checker-action@v5
       - uses: cachix/install-nix-action@v22
         with:
           github_access_token: ${{ secrets.GH_TOKEN }}