diff --git a/pkgs/development/python-modules/monty/default.nix b/pkgs/development/python-modules/monty/default.nix
index 677cb68ca50..361be1bf184 100644
--- a/pkgs/development/python-modules/monty/default.nix
+++ b/pkgs/development/python-modules/monty/default.nix
@@ -14,14 +14,14 @@
 
 buildPythonPackage rec {
   pname = "monty";
-  version = "1.0.4";
+  version = "3.0.2";
 
   # No tests in Pypi
   src = fetchFromGitHub {
     owner = "materialsvirtuallab";
     repo = pname;
     rev = "v${version}";
-    sha256 = "0vqaaz0dw0ypl6sfwbycpb0qs3ap04c4ghbggklxih66spdlggh6";
+    sha256 = "1wxqxp0j7i6czdpr2r1imgmy3qbgn2l7d4za2h1lg3hllvx6jra1";
   };
 
   checkInputs = [ lsof nose numpy msgpack coverage coveralls pymongo];