diff --git a/pkgs/development/python-modules/jdatetime/default.nix b/pkgs/development/python-modules/jdatetime/default.nix
index 97e500eebcf6..f2e9b66b7b3c 100644
--- a/pkgs/development/python-modules/jdatetime/default.nix
+++ b/pkgs/development/python-modules/jdatetime/default.nix
@@ -7,14 +7,14 @@
 
 buildPythonPackage rec {
   pname = "jdatetime";
-  version = "3.8.2";
+  version = "4.0.0";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "c685687e3f39e1b9a3ba9c00ed9d8e88603bc8994413e84623e6c5d43214e6f8";
+    sha256 = "sha256-01uuou0hPk6Hu4QMYWNwAVQL0h6ORFS9EjUrBlkewI4=";
   };
 
   propagatedBuildInputs = [