diff --git a/pkgs/development/python-modules/hpack/default.nix b/pkgs/development/python-modules/hpack/default.nix
index da16cd0896b8..f67dda839f1e 100644
--- a/pkgs/development/python-modules/hpack/default.nix
+++ b/pkgs/development/python-modules/hpack/default.nix
@@ -9,14 +9,14 @@
 
 buildPythonPackage rec {
   pname = "hpack";
-  version = "4.1.0";
+  version = "4.2.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "python-hyper";
     repo = "hpack";
     rev = "v${version}";
-    hash = "sha256-vbxfDlRDwMXuzkPO0oceCpSz1ekLNxLSj4iocdHo680=";
+    hash = "sha256-gZe/ABRLXoBAeH/mp/yIgDj56jalyiYgs4EP2qK17Ig=";
   };
 
   build-system = [ setuptools ];