diff --git a/pkgs/development/python-modules/httpx/default.nix b/pkgs/development/python-modules/httpx/default.nix
index e2dde7e6b9a1..3d0041508d8f 100644
--- a/pkgs/development/python-modules/httpx/default.nix
+++ b/pkgs/development/python-modules/httpx/default.nix
@@ -20,7 +20,6 @@
   python,
   pythonOlder,
   rich,
-  sniffio,
   socksio,
   pytestCheckHook,
   pytest-asyncio,
@@ -32,8 +31,8 @@
 
 buildPythonPackage rec {
   pname = "httpx";
-  version = "0.27.2";
-  format = "pyproject";
+  version = "0.28.1";
+  pyproject = true;
 
   disabled = pythonOlder "3.7";
 
@@ -41,7 +40,7 @@ buildPythonPackage rec {
     owner = "encode";
     repo = pname;
     tag = version;
-    hash = "sha256-N0ztVA/KMui9kKIovmOfNTwwrdvSimmNkSvvC+3gpck=";
+    hash = "sha256-tB8uZm0kPRnmeOvsDdrkrHcMVIYfGanB4l/xHsTKpgE=";
   };
 
   build-system = [
@@ -49,12 +48,11 @@ buildPythonPackage rec {
     hatchling
   ];
 
-  propagatedBuildInputs = [
+  dependencies = [
     anyio
     certifi
     httpcore
     idna
-    sniffio
   ];
 
   optional-dependencies = {