diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b22cdf99..9afeea7e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -172,7 +172,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Nix
-        uses: cachix/install-nix-action@V28
+        uses: cachix/install-nix-action@v29
         with:
           extra_nix_config: |
             ## Access token to avoid triggering GitHub's rate limiting.