diff --git a/.github/workflows/cachix.yml b/.github/workflows/cachix.yml
index 3685a7c6..5052622c 100644
--- a/.github/workflows/cachix.yml
+++ b/.github/workflows/cachix.yml
@@ -14,7 +14,7 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Install nix
-      uses: cachix/install-nix-action@V28
+      uses: cachix/install-nix-action@v29
 
     - name: Authenticate with Cachix
       uses: cachix/cachix-action@v15