diff --git a/pkgs/development/python-modules/sumo/default.nix b/pkgs/development/python-modules/sumo/default.nix
index e1b3d8c705e..9ba073df922 100644
--- a/pkgs/development/python-modules/sumo/default.nix
+++ b/pkgs/development/python-modules/sumo/default.nix
@@ -12,14 +12,14 @@
 
 buildPythonPackage rec {
   pname = "sumo";
-  version = "1.0.9";
+  version = "2.2.1";
 
   # No tests in Pypi tarball
   src = fetchFromGitHub {
     owner = "SMTG-UCL";
     repo = "sumo";
     rev = "v${version}";
-    sha256 = "1zw86qp9ycw2k0anw6pzvwgd3zds0z2cwy0s663zhiv9mnb5hx1n";
+    sha256 = "0r88f5w33h9b0mv7shlqc4przwvas5ycgndvl91wqjnm3b2s3ix0";
   };
 
   propagatedBuildInputs = [ numpy scipy spglib pymatgen h5py matplotlib seekpath phonopy ];