diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 85c91448a..9bba9f009 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -147,7 +147,7 @@ jobs:
     - uses: actions/checkout@v4
     - uses: cachix/install-nix-action@V28
       with:
-        nix_path: nixpkgs=channel:nixos-unstable
+        nix_path: nixpkgs=channel:nixos-stable
     - name: Cache cabal global package db
       id:   cabal-global
       uses: actions/cache@v4