diff --git a/pkgs/development/python-modules/pylitterbot/default.nix b/pkgs/development/python-modules/pylitterbot/default.nix
index 598d35888b7b..912b968538b8 100644
--- a/pkgs/development/python-modules/pylitterbot/default.nix
+++ b/pkgs/development/python-modules/pylitterbot/default.nix
@@ -43,12 +43,6 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
-  postPatch = ''
-    # https://github.com/natekspencer/pylitterbot/issues/73
-    substituteInPlace pyproject.toml \
-      --replace 'deepdiff = "^5.8.1"' 'deepdiff = ">=5.8.1"'
-  '';
-
   pythonImportsCheck = [
     "pylitterbot"
   ];