diff --git a/pkgs/tools/networking/httplab/default.nix b/pkgs/tools/networking/httplab/default.nix
index f39b061c34db..f4fb4fe96076 100644
--- a/pkgs/tools/networking/httplab/default.nix
+++ b/pkgs/tools/networking/httplab/default.nix
@@ -2,7 +2,7 @@
 
 buildGoPackage rec {
   pname = "httplab";
-  version = "0.3.0";
+  version = "0.4.0";
   rev = "v${version}";
 
   goPackagePath = "github.com/gchaincl/httplab";
@@ -11,7 +11,7 @@ buildGoPackage rec {
     owner = "gchaincl";
     repo = "httplab";
     inherit rev;
-    sha256 = "1q9rp43z59nryfm79gci5a1gmqw552rqd4cki81rymbj3f6xvrf9";
+    sha256 = "0442nnpxyfl2gi9pilv7q6cxs2cd98wblg8d4nw6dx98yh4h99zs";
   };
 
   meta = with stdenv.lib; {