diff --git a/pkgs/development/python-modules/nbclassic/default.nix b/pkgs/development/python-modules/nbclassic/default.nix
index 6f17d83524c2..79febaf68518 100644
--- a/pkgs/development/python-modules/nbclassic/default.nix
+++ b/pkgs/development/python-modules/nbclassic/default.nix
@@ -26,14 +26,14 @@
 
 buildPythonPackage rec {
   pname = "nbclassic";
-  version = "0.5.2";
+  version = "1.0.0";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-QPEbvMWeiVbD1e8TLeyOWoU+iT7Pgx55HVTaDYpQ150=";
+    hash = "sha256-CuEesjGUVdgFWWvzIDNs2pVUtB2Zq5o8Mb+BgL/6MOM=";
   };
 
   propagatedBuildInputs = [