diff --git a/pkgs/development/python-modules/magic-wormhole-transit-relay/default.nix b/pkgs/development/python-modules/magic-wormhole-transit-relay/default.nix
index e92d2b0ec273..c58017f7bf77 100644
--- a/pkgs/development/python-modules/magic-wormhole-transit-relay/default.nix
+++ b/pkgs/development/python-modules/magic-wormhole-transit-relay/default.nix
@@ -2,7 +2,6 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
-  fetchpatch,
   setuptools,
   autobahn,
   twisted,
@@ -12,25 +11,16 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "magic-wormhole-transit-relay";
-  version = "0.4.0";
+  version = "0.5.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "magic-wormhole";
     repo = "magic-wormhole-transit-relay";
     tag = finalAttrs.version;
-    hash = "sha256-AKLmiOlxNDd8rxNeWTDTPxtSoEyTGZ5PMLgyVxcIHcg=";
+    hash = "sha256-UhV0M8Nl9Y850PQcJoDyIvIPRyBS8gyF2Ub9qF3aq0U=";
   };
 
-  patches = [
-    # TODO: drop when updating beyond version 0.4.0
-    (fetchpatch {
-      name = "stock-Twisted-testing-reactor-seems-to-work.patch";
-      url = "https://github.com/magic-wormhole/magic-wormhole-transit-relay/commit/3abb80fd5e55bd0ba8ee66278ccf76be5f904622.patch";
-      hash = "sha256-qMaJ58kPWvEfnSZiFzxO6GlkBiyVMsgGDEa1deITZco=";
-    })
-  ];
-
   postPatch = ''
     # Passing the environment to twistd is necessary to preserve Python's site path.
     substituteInPlace src/wormhole_transit_relay/test/test_backpressure.py --replace-fail \
@@ -42,7 +32,6 @@ buildPythonPackage (finalAttrs: {
 
   dependencies = [
     autobahn
-    setuptools # pkg_resources is referenced at runtime
     twisted
   ];