diff --git a/pkgs/development/python-modules/http-parser/default.nix b/pkgs/development/python-modules/http-parser/default.nix
index 2ffc08beb200..7e53465939f2 100644
--- a/pkgs/development/python-modules/http-parser/default.nix
+++ b/pkgs/development/python-modules/http-parser/default.nix
@@ -5,6 +5,7 @@
   cython,
   setuptools,
   pytestCheckHook,
+  fetchpatch,
 }:
 
 buildPythonPackage rec {
@@ -34,7 +35,12 @@ buildPythonPackage rec {
   # The imp module is deprecated since version 3.4, and was removed in 3.12
   # https://docs.python.org/3.11/library/imp.html
   # Fix from: https://github.com/benoitc/http-parser/pull/101/
-  patches = [ ./imp-importlib.diff ];
+  patches = [
+    (fetchpatch {
+      url = "https://github.com/benoitc/http-parser/commit/4d4984ce129253f9de475bfd3c683301c916e8b1.patch";
+      hash = "sha256-d3k1X41/D9PpPWsDety2AiYyLv9LJIhpkOo3a6qKcB8=";
+    })
+  ];
 
   nativeCheckInputs = [ pytestCheckHook ];
 
diff --git a/pkgs/development/python-modules/http-parser/imp-importlib.diff b/pkgs/development/python-modules/http-parser/imp-importlib.diff
deleted file mode 100644
index e8b166a9c099..000000000000
--- a/pkgs/development/python-modules/http-parser/imp-importlib.diff
+++ /dev/null
@@ -1,31 +0,0 @@
-diff --git a/setup.py b/setup.py
-index 5c3f768..04de1d0 100644
---- a/setup.py
-+++ b/setup.py
-@@ -9,7 +9,8 @@ from distutils.errors import CCompilerError, DistutilsExecError, \
- from distutils.command.build_ext import build_ext
- from distutils.command.sdist import sdist as _sdist
- import glob
--from imp import load_source
-+import importlib.machinery
-+import importlib.util
- import io
- import os
- import shutil
-@@ -28,6 +29,16 @@ if sys.platform == 'win32' and sys.version_info > (2, 6):
-    # find the compiler
-    ext_errors += (IOError,)
- 
-+
-+def load_source(modname, filename):
-+    loader = importlib.machinery.SourceFileLoader(modname, filename)
-+    spec = importlib.util.spec_from_file_location(
-+        modname, filename, loader=loader)
-+    module = importlib.util.module_from_spec(spec)
-+    loader.exec_module(module)
-+    return module
-+
-+
- http_parser = load_source("http_parser", os.path.join("http_parser",
-         "__init__.py"))
-