diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b7e80a0a3..51d4c0808 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -145,7 +145,7 @@ jobs:
       fail-fast: true
     steps:
     - uses: actions/checkout@v4
-    - uses: cachix/install-nix-action@V28
+    - uses: cachix/install-nix-action@v29
       with:
         nix_path: nixpkgs=channel:nixos-24.05
     - name: Cache cabal global package db