diff --git a/pkgs/development/python-modules/flask-jwt-extended/default.nix b/pkgs/development/python-modules/flask-jwt-extended/default.nix
index a49aefd5ebcd..d58ae4310398 100644
--- a/pkgs/development/python-modules/flask-jwt-extended/default.nix
+++ b/pkgs/development/python-modules/flask-jwt-extended/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "Flask-JWT-Extended";
-  version = "4.1.0";
+  version = "4.2.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "77ca23f23e80480ea42b9c1d9b0fca214e08db7192583e782c2421416b4a4655";
+    sha256 = "76461f2dbdf502261c69ddecd858eaf4164fbcfbf05aa456f3927fc2ab0315de";
   };
 
   propagatedBuildInputs = [ dateutil flask pyjwt werkzeug ];