diff --git a/README.md b/README.md
index 6ff6177..da8b4de 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - uses: cachix/install-nix-action@v9
+    - uses: cachix/install-nix-action@v10
       with:
         nix_path: nixpkgs=channel:nixos-unstable
     - run: nix-build