diff --git a/pkgs/development/python-modules/automat/default.nix b/pkgs/development/python-modules/automat/default.nix
index 094015e56f5e..ba055025d698 100644
--- a/pkgs/development/python-modules/automat/default.nix
+++ b/pkgs/development/python-modules/automat/default.nix
@@ -1,7 +1,6 @@
 { lib
 , buildPythonPackage
 , fetchPypi
-, fetchpatch
 , attrs
 , pytest-benchmark
 , pytestCheckHook
@@ -10,25 +9,15 @@
 }:
 
 let automat = buildPythonPackage rec {
-  version = "20.2.0";
+  version = "22.10.0";
   pname = "automat";
 
   src = fetchPypi {
     pname = "Automat";
     inherit version;
-    sha256 = "7979803c74610e11ef0c0d68a2942b152df52da55336e0c9d58daf1831cbdf33";
+    hash = "sha256-5WvrhO2tGdzBHTDo2biV913ute9elrhKRnBms7hLsE4=";
   };
 
-  patches = [
-    # don't depend on m2r
-    (fetchpatch {
-      name = "dont-depend-on-m2r.patch";
-      url = "https://github.com/glyph/automat/compare/v20.2.0..2562fa4ddeba5b5945d9482baa4c26a414f5e831.patch";
-      includes = [ "setup.py" ];
-      hash = "sha256-jlPLJMu1QbBpiVYHDiqPydrXjEoZgYZTVVGNxSA0NxY=";
-    })
-  ];
-
   nativeBuildInputs = [
     setuptools-scm
   ];