diff --git a/pkgs/development/python-modules/markdown-it-py/default.nix b/pkgs/development/python-modules/markdown-it-py/default.nix
index dc8866350b1f..6f58c4c8ae9f 100644
--- a/pkgs/development/python-modules/markdown-it-py/default.nix
+++ b/pkgs/development/python-modules/markdown-it-py/default.nix
@@ -1,7 +1,6 @@
 { lib
 , buildPythonPackage
 , fetchFromGitHub
-, fetchpatch
 , pytestCheckHook
 , pythonOlder
 , attrs
@@ -14,7 +13,7 @@
 
 buildPythonPackage rec {
   pname = "markdown-it-py";
-  version = "1.0.0";
+  version = "1.1.0";
   format = "pyproject";
 
   disabled = pythonOlder "3.6";
@@ -23,18 +22,9 @@ buildPythonPackage rec {
     owner = "executablebooks";
     repo = pname;
     rev = "v${version}";
-    hash = "sha256-GA7P2I8N+i2ISsVgx58zyhrfKMcZ7pL4X9T/trbsr1Y=";
+    sha256 = "0h7rn3rcqfwmnqs97qczwkw9w5g4df8bgn6sw7k149svfqgrkf56";
   };
 
-  patches = [
-    (fetchpatch {
-      # :arrow_up: UPGRADE: attrs -> v21 (#165)
-      # https://github.com/executablebooks/markdown-it-py/pull/165
-      url = "https://github.com/executablebooks/markdown-it-py/commit/78381ffe1a651741594dc93e693b761422512fa2.patch";
-      sha256 = "1kxhblpi4sycrs3rv50achr8g0wlgq33abg2acra26l736hlsya1";
-    })
-  ];
-
   propagatedBuildInputs = [ attrs linkify-it-py ]
     ++ lib.optional (pythonOlder "3.8") typing-extensions;