diff --git a/pkgs/development/python-modules/hass-nabucasa/default.nix b/pkgs/development/python-modules/hass-nabucasa/default.nix
index badbeb493bc..e14b97d94ce 100644
--- a/pkgs/development/python-modules/hass-nabucasa/default.nix
+++ b/pkgs/development/python-modules/hass-nabucasa/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchFromGitHub, acme, aiohttp, snitun, attrs, pytest-aiohttp, warrant, pytest }:
+{ lib, buildPythonPackage, fetchFromGitHub, fetchpatch, acme, aiohttp, snitun, attrs, pytest-aiohttp, warrant, pytest }:
 
 buildPythonPackage rec {
   pname = "hass-nabucasa";
@@ -11,6 +11,12 @@ buildPythonPackage rec {
     sha256 = "182nh5i3hlj0kqkbynk69md0ddq83w02l8lz4m03d8xbjixzi1k1";
   };
 
+  # upstreamed in https://github.com/NabuCasa/hass-nabucasa/pull/119
+  postPatch = ''
+    sed -i 's/"acme.*/"acme>=0.40.0,<2.0"/' setup.py
+    cat setup.py
+  '';
+
   propagatedBuildInputs = [ acme aiohttp snitun attrs warrant ];
 
   checkInputs = [ pytest pytest-aiohttp ];