diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 65add8e..463e9c1 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -23,7 +23,7 @@ jobs:
     - name: Checkout LFS objects
       run: git lfs checkout
     - name: Install Nix
-      uses: cachix/install-nix-action@v12
+      uses: cachix/install-nix-action@v18
       with:
         nix_path: nixpkgs=channel:nixpkgs-20.09-darwin
     - name: Configure Cachix