diff --git a/pkgs/development/python-modules/typing-extensions/default.nix b/pkgs/development/python-modules/typing-extensions/default.nix
index 1d8929e3d7e..d6ae7cefc39 100644
--- a/pkgs/development/python-modules/typing-extensions/default.nix
+++ b/pkgs/development/python-modules/typing-extensions/default.nix
@@ -4,11 +4,11 @@ let
 
 in buildPythonPackage rec {
   pname = "typing_extensions";
-  version = "3.7.4.1";
+  version = "3.7.4.2";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "091ecc894d5e908ac75209f10d5b4f118fbdb2eb1ede6a63544054bb1edb41f2";
+    sha256 = "79ee589a3caca649a9bfd2a8de4709837400dfa00b6cc81962a1e6a1815969ae";
   };
 
   checkInputs = lib.optional (pythonOlder "3.5") typing;