diff --git a/pkgs/development/python-modules/cemm/default.nix b/pkgs/development/python-modules/cemm/default.nix
index ff03a97b7c4e..70a99ec60f7e 100644
--- a/pkgs/development/python-modules/cemm/default.nix
+++ b/pkgs/development/python-modules/cemm/default.nix
@@ -9,7 +9,6 @@
   pytest-asyncio,
   pytest-cov-stub,
   pytestCheckHook,
-  pythonOlder,
   yarl,
 }:
 
@@ -18,8 +17,6 @@ buildPythonPackage rec {
   version = "0.5.1";
   pyproject = true;
 
-  disabled = pythonOlder "3.9";
-
   src = fetchFromGitHub {
     owner = "klaasnicolaas";
     repo = "python-cemm";
@@ -34,6 +31,12 @@ buildPythonPackage rec {
       url = "https://github.com/klaasnicolaas/python-cemm/commit/1e373dac078f18563264e6733baf6a93962cac4b.patch";
       hash = "sha256-DVNn4BZwi8yNpKFmzt7YSYhzzB4vaAyrd/My8TtYzj0=";
     })
+    # https://github.com/klaasnicolaas/python-cemm/pull/568
+    (fetchpatch {
+      name = "replace-async_timeout.patch";
+      url = "https://github.com/klaasnicolaas/python-cemm/commit/a818e7ccf196cd5cd4c3e6bf503fb932993281ca.patch";
+      hash = "sha256-MwPxK+TRZVvf0sS6HS3+CRRY7dDr1qwCCJ+arQ26gWU=";
+    })
   ];
 
   postPatch = ''
@@ -62,8 +65,8 @@ buildPythonPackage rec {
   meta = with lib; {
     description = "Module for interacting with CEMM devices";
     homepage = "https://github.com/klaasnicolaas/python-cemm";
-    changelog = "https://github.com/klaasnicolaas/python-cemm/releases/tag/v${version}";
-    license = with licenses; [ mit ];
+    changelog = "https://github.com/klaasnicolaas/python-cemm/releases/tag/${src.tag}";
+    license = licenses.mit;
     maintainers = with maintainers; [ fab ];
   };
 }