diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index 4ed1e1c..adedd62 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -48,6 +48,11 @@ jobs:
         with:
           source-url: https://github.com/DeterminateSystems/nix-installer/releases/download/v0.30.0/nix-installer-${{ matrix.platform.nix-installer.platform }}
       - uses: DeterminateSystems/magic-nix-cache-action@v8
+      - name: Print Nix version
+        run: |
+          nix --version
+          nix-channel --list
+          nix-instantiate --eval -E '(import <nixpkgs> {}).lib.version'
       - name: Print ruby version
         run: |
           nix develop --command which ruby