diff --git a/.github/workflows/release-nightly.yaml b/.github/workflows/release-nightly.yaml
index 14fc41b..8c95f0f 100644
--- a/.github/workflows/release-nightly.yaml
+++ b/.github/workflows/release-nightly.yaml
@@ -15,7 +15,7 @@ jobs:
       - name: Check version in code matches flake version
         shell: bash
         run: |
-          if ! [ $(grep '// CI:CD-VERSION$' server/root-handler/handler.go | cut -d'"' -f 2) = $(nix eval --file flake.nix inputs.version | cut -d '"' -f 2) ];
+          if ! [ $(grep '// CI:CD-VERSION$' server/root-handler/handler.go | cut -d'"' -f 2) = $(grep '# CI:CD-VERSION$' flake.nix | cut -d'"' -f 2) ];
           then
             echo "Version mismatch"
             exit 1
diff --git a/flake.nix b/flake.nix
index a15c626..a0dce7a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -9,12 +9,12 @@
       inputs.utils.follows = "utils";
     };
     utils.url = "github:numtide/flake-utils";
-    version = "0.1.0";
   };
 
-  outputs = { self, nixpkgs, utils, gomod2nix, version }: 
+  outputs = { self, nixpkgs, utils, gomod2nix }: 
     utils.lib.eachDefaultSystem (system:
       let
+        version = "0.1.0"; # CI:CD-VERSION
         pkgs = import nixpkgs {
           inherit system;
           overlays = [