diff --git a/.github/workflows/go_build.yml b/.github/workflows/ci.yml
similarity index 55%
rename from .github/workflows/go_build.yml
rename to .github/workflows/ci.yml
index 7c1f35dd..7f81acc8 100644
--- a/.github/workflows/go_build.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,7 @@ jobs:
   go-build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Go
         uses: actions/setup-go@v4
@@ -17,3 +17,13 @@ jobs:
 
       - name: Build
         run: go build -v ./cmd/mithril
+
+  nix-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: cachix/install-nix-action@v31
+
+      - name: Nix flake check
+        run: nix flake check
diff --git a/nix/packages.nix b/nix/packages.nix
index 0ff19202..6cb60304 100644
--- a/nix/packages.nix
+++ b/nix/packages.nix
@@ -47,7 +47,7 @@ in {
         version = "0.0.0";
         src = self;
         subPackages = ["cmd/mithril"];
-        vendorHash = "sha256-BVgVVvRAllEfb8D6Mh6NSaeLLOx6zeXwY4QyCwP0veo=";
+        vendorHash = "sha256-k9fz50CPtu/T2VWS5WCcurDRfop+AGtBuhB+rD9UnyA=";
         nativeBuildInputs = [pkgs.pkg-config];
         buildInputs = [pkgs.zstd];
         env = {