diff --git a/pkgs/development/python-modules/m2crypto/default.nix b/pkgs/development/python-modules/m2crypto/default.nix
index ca976b887cf6..da94945fa869 100644
--- a/pkgs/development/python-modules/m2crypto/default.nix
+++ b/pkgs/development/python-modules/m2crypto/default.nix
@@ -13,21 +13,15 @@
 
 buildPythonPackage rec {
   pname = "m2crypto";
-  version = "0.45.0";
+  version = "0.45.1";
   pyproject = true;
 
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-/8ENTQmQFRT0CNx09gpNffIcROvJv3dslHv9xzWUIc8=";
+    hash = "sha256-0PyBqIKO2/QwhDKzBAvwa7JrrZWruefUaQthGFUeduw=";
   };
-  patches = [
-    (fetchurl {
-      url = "https://sources.debian.org/data/main/m/m2crypto/0.42.0-2.1/debian/patches/0004-swig-Workaround-for-reading-sys-select.h-ending-with.patch";
-      hash = "sha256-/Bkuqu/Od+S56AUWo0ZzpZF7FGMxP766K2GJnfKXrOI=";
-    })
-  ];
 
   build-system = [ setuptools ];