diff --git a/pkgs/development/python-modules/m2crypto/default.nix b/pkgs/development/python-modules/m2crypto/default.nix
index 1767050052fc..5de2f6cd1996 100644
--- a/pkgs/development/python-modules/m2crypto/default.nix
+++ b/pkgs/development/python-modules/m2crypto/default.nix
@@ -13,14 +13,14 @@
 
 buildPythonPackage rec {
   pname = "m2crypto";
-  version = "0.44.0";
+  version = "0.45.0";
   pyproject = true;
 
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-OEu0y9F47g50AVMRt7H58sN342huA/oHCz7C9JRnHA8=";
+    hash = "sha256-/8ENTQmQFRT0CNx09gpNffIcROvJv3dslHv9xzWUIc8=";
   };
   patches = [
     (fetchurl {