diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index faeeb85..c66f50c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -51,7 +51,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Install Nix
-      uses: cachix/install-nix-action@v22
+      uses: cachix/install-nix-action@v31
       with:
         github_access_token: ${{ secrets.GITHUB_TOKEN }}
     - name: Check flake formatting