diff --git a/pkgs/development/python-modules/nbdime/default.nix b/pkgs/development/python-modules/nbdime/default.nix
index e1bb3e84079b..582d46b52108 100644
--- a/pkgs/development/python-modules/nbdime/default.nix
+++ b/pkgs/development/python-modules/nbdime/default.nix
@@ -28,14 +28,14 @@
 
 buildPythonPackage rec {
   pname = "nbdime";
-  version = "3.2.1";
+  version = "4.0.1";
   format = "setuptools";
 
   disabled = pythonOlder "3.6";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-MUCaMPhI/8azJUBpfoLVoKG4TcwycWynTni8xLRXxFM=";
+    hash = "sha256-8adgwLAMG6m0lFwWzpJXfzk/tR0YTzUbdoW6boUCCY4=";
   };
 
   nativeBuildInputs = [