diff --git a/pkgs/development/python-modules/pyls-black/default.nix b/pkgs/development/python-modules/pyls-black/default.nix
index d21002f91606..478b08b26471 100644
--- a/pkgs/development/python-modules/pyls-black/default.nix
+++ b/pkgs/development/python-modules/pyls-black/default.nix
@@ -27,6 +27,9 @@ buildPythonPackage rec {
     homepage = "https://github.com/rupert/pyls-black";
     description = "Black plugin for the Python Language Server";
     license = licenses.mit;
+    # Not compatible with 0.33.1
+    # https://github.com/rupert/pyls-black/issues/24
+    broken = true; # since 2020-06-16
     maintainers = [ maintainers.mic92 ];
   };
 }