diff --git a/pkgs/development/python-modules/monty/default.nix b/pkgs/development/python-modules/monty/default.nix
index ea95e2b2d85d..8e115bf3a180 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 = "2022.1.19";
+  version = "2022.4.26";
   disabled = pythonOlder "3.5"; # uses type annotations
 
   src = fetchFromGitHub {
     owner = "materialsvirtuallab";
     repo = pname;
-    rev = "v${version}";
-    sha256 = "sha256-CGYYPpXRBvqf6GJYYZUARpzt4XFc5uAw91n21UInYpU=";
+    rev = "refs/tags/v${version}";
+    sha256 = "sha256-SQku10nzTSuO5ISUDyDKAEoMhBBxPzyLNhoAyrlKH+E=";
   };
 
   postPatch = ''