diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index b622811..5997fb7 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -16,7 +16,7 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v3
     - name: "Install Nix"
-      uses: cachix/install-nix-action@v17
+      uses: cachix/install-nix-action@v18
     - name: "Set Up Binary Cache"
       if: github.event_name != 'pull_request'
       uses: cachix/cachix-action@v10