diff --git a/pkgs/development/python-modules/bcg/default.nix b/pkgs/development/python-modules/bcg/default.nix
index 1855e95eddba..f0bf00086818 100644
--- a/pkgs/development/python-modules/bcg/default.nix
+++ b/pkgs/development/python-modules/bcg/default.nix
@@ -2,9 +2,11 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  fetchpatch,
   appdirs,
   click,
   click-log,
+  looseversion,
   paho-mqtt,
   pyaml,
   pyserial,
@@ -23,6 +25,13 @@ buildPythonPackage rec {
     sha256 = "2Yh5MeIv+BIxjoO9GOPqq7xTAFhyBvnxPy7DeO2FrkI=";
   };
 
+  patches = [
+    (fetchpatch { # https://github.com/hardwario/bch-gateway/pull/19
+      name = "bcg-fix-import-with-Python-3.12.patch";
+      url = "https://github.com/hardwario/bch-gateway/pull/19/commits/1314c892992d8914802b6c42602c39f6a1418fca.patch";
+      hash = "sha256-dNiBppXjPSMUe2yiiSc9gGbAc8l4mI41wWq+g7PkD/Y=";
+    })
+  ];
   postPatch = ''
     sed -ri 's/@@VERSION@@/${version}/g' \
       bcg/__init__.py setup.py
@@ -32,6 +41,7 @@ buildPythonPackage rec {
     appdirs
     click
     click-log
+    looseversion
     paho-mqtt
     pyaml
     pyserial