diff --git a/flake.nix b/flake.nix
index 190e681..a9b621d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -69,7 +69,11 @@
             ];
           };
           packages = evaluated.config.packages;
-          expectedPackages = [ pkgs.hello self.packages.${system}.tools ] ++ builtins.attrValues goAnalysis;
+          tools = import ./go/package.nix {
+            inherit (pkgs) lib;
+            buildGo127Module = pkgs.buildGoModule.override { go = pkgs.go; };
+          };
+          expectedPackages = [ pkgs.hello tools ] ++ builtins.attrValues goAnalysis;
           hasExpectedPackages = builtins.length packages == 6
             && builtins.all (package: builtins.elem package packages) expectedPackages
             && builtins.all (tool: builtins.elem tool packages) (builtins.attrValues goAnalysis);
diff --git a/go/package.nix b/go/package.nix
index 97f87f2..5dd6b6f 100644
--- a/go/package.nix
+++ b/go/package.nix
@@ -3,7 +3,7 @@ buildGo127Module {
   pname = "meissa-tools";
   version = (lib.importJSON ../.release-please-manifest.json).go or "0.0.0";
   src = lib.fileset.toSource { root = ./.; fileset = ./.; };
-  vendorHash = "sha256-CB74ZafnUJ1K0A4Liv0KJinHvYxiXIwPg2OYdvcHzBo=";
+  vendorHash = "sha256-gXUE5nvRY4WOvIP0ZM5WscVD6BCXFgjD0OQ+gx/XBFs=";
   subPackages = [ "cmd/code-shape-gate" "cmd/ref-gate" "cmd/refresh-nix-hashes" ];
   env.CGO_ENABLED = "0";
   ldflags = [ "-s" "-w" ];