diff --git a/pkgs/development/python-modules/xml2rfc/default.nix b/pkgs/development/python-modules/xml2rfc/default.nix
index 7dc6cf2896f0..d5795ddf969d 100644
--- a/pkgs/development/python-modules/xml2rfc/default.nix
+++ b/pkgs/development/python-modules/xml2rfc/default.nix
@@ -5,11 +5,11 @@
 
 buildPythonPackage rec {
   pname = "xml2rfc";
-  version = "2.45.3";
+  version = "2.47.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "e083195efc07f84fb22da9e74d5d9f857d3c82a3947995b0d4f3ff9b11a1a7c5";
+    sha256 = "7f621ed0e5a30c2b67c0e50778627b7a35e1ccfea9db19ea89b4c72a8faf42c0";
   };
 
   propagatedBuildInputs = [