diff --git a/.github/workflows/build-schemes.yml b/.github/workflows/build-schemes.yml
index 7c9a482..6b2ff98 100644
--- a/.github/workflows/build-schemes.yml
+++ b/.github/workflows/build-schemes.yml
@@ -16,11 +16,6 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     
-    - name: Setup Nix
-      uses: cachix/install-nix-action@v23
-      with:
-        nix_path: nixpkgs=channel:nixpkgs-unstable
-    
     - name: Get available schemes
       id: schemes
       run: |