1 files changed, 4 insertions, 4 deletions
diff --git a/pkgs/development/python-modules/black/default.nix b/pkgs/development/python-modules/black/default.nix
index 6ad124e8fd4..fc729dd399d 100644
--- a/pkgs/development/python-modules/black/default.nix
+++ b/pkgs/development/python-modules/black/default.nix
@@ -1,16 +1,16 @@
 { stdenv, buildPythonPackage, fetchPypi, pythonOlder
-, attrs, click, toml, appdirs, aiohttp
+, attrs, click, toml, appdirs, aiohttp, aiohttp-cors
 , glibcLocales, pytest }:
 
 buildPythonPackage rec {
   pname = "black";
-  version = "18.9b0";
+  version = "19.3b0";
 
   disabled = pythonOlder "3.6";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1992ramdwv8sg4mbl5ajirwj5i4a48zjgsycib0fnbaliyiajc70";
+    sha256 = "073kd5rs02lisp6n3h7yai9lix520xnaa6c7rdmp2sci9pyhz5b8";
   };
 
   checkInputs =  [ pytest glibcLocales ];
@@ -23,7 +23,7 @@ buildPythonPackage rec {
       --deselect tests/test_black.py::BlackTestCase::test_failed_formatting_does_not_get_cached
   '';
 
-  propagatedBuildInputs = [ attrs appdirs click toml aiohttp ];
+  propagatedBuildInputs = [ attrs appdirs click toml aiohttp aiohttp-cors ];
 
   meta = with stdenv.lib; {
     description = "The uncompromising Python code formatter";