diff --git a/.gitea/workflows/nix-flake-check.yaml b/.gitea/workflows/nix-flake-check.yaml
index 225d741..2256857 100644
--- a/.gitea/workflows/nix-flake-check.yaml
+++ b/.gitea/workflows/nix-flake-check.yaml
@@ -4,8 +4,9 @@ on: push
 jobs:
   nix-flake-update:
     runs-on: ubuntu-latest
-    container: nixpkgs/nix-flakes
     steps:
       - uses: actions/checkout@v4
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@main
       - name: Check flake
         run: nix flake check