diff --git a/pkgs/tools/networking/cassowary/default.nix b/pkgs/tools/networking/cassowary/default.nix
index bc1f9cebb42f..6156f43b04b8 100644
--- a/pkgs/tools/networking/cassowary/default.nix
+++ b/pkgs/tools/networking/cassowary/default.nix
@@ -1,21 +1,23 @@
-{ lib, buildGoModule, fetchFromGitHub, writeText, runtimeShell, ncurses, }:
+{ lib, buildGoModule, fetchFromGitHub }:
 
 buildGoModule rec {
   pname = "cassowary";
-  version = "0.3.0";
+  version = "0.7.0";
 
   src = fetchFromGitHub {
     owner = "rogerwelin";
     repo = pname;
-    rev = "33b7e81a5d147980f4ddc689818df2b071f6ab4e";
-    sha256 = "01cdmh2v9rz8rna08hdsddllck6zp9wcrhxdy6hs77zfsbzyfflx";
+    rev = "v${version}";
+    sha256 = "0p5vcs25h5nj36dm9yjmdjymcq0zldm3zlqfppxcjx862h48k8zj";
   };
 
   modSha256 = "1iylnnmj5slji89pkb3shp4xqar1zbpl7bzwddbzpp8y52fmsv1c";
 
+  buildFlagsArray = [ "-ldflags=-s -w -X main.version=${version}" ];
+
   meta = with lib; {
     homepage = "https://github.com/rogerwelin/cassowary";
-    description = "Modern cross-platform HTTP load-testing tool written in Go ";
+    description = "Modern cross-platform HTTP load-testing tool written in Go";
     license = licenses.mit;
     maintainers = with maintainers; [ hugoreeves ];
     platforms = platforms.unix;