diff --git a/.gitea/workflows/build-docker.yml b/.gitea/workflows/build-docker.yml
index 7455627..ea9e971 100644
--- a/.gitea/workflows/build-docker.yml
+++ b/.gitea/workflows/build-docker.yml
@@ -14,6 +14,7 @@ jobs:
         uses: https://github.com/cachix/install-nix-action@v22
         with:
           extra_nix_config: "experimental-features = nix-command flakes"
+          nix_path: nixpkgs=channel:nixos-23.05
       - name: Remove access_tokens
         run: sed -i '/^access-tokens/d' /etc/nix/nix.conf
       - name: Check out repository