diff --git a/entropy/nixos/modules/python.nix b/entropy/nixos/modules/python.nix
index 7c5d530..9192c08 100644
--- a/entropy/nixos/modules/python.nix
+++ b/entropy/nixos/modules/python.nix
@@ -19,10 +19,10 @@
       (
         buildPythonPackage rec {
           pname = "xdsl";
-          version = "0.12.1";
+          version = "0.21.1";
           src = fetchPypi {
             inherit pname version;
-            sha256 = "sha256-ZpZ7DTwlDTHeMUJ2SSe3PR+8iaZBShYelP5TkutKWS0=";
+            sha256 = "095gg9bki5nk7a8xlplx3bs561px6327mshpb6mz3slhjwbsikr1";
           };
           doCheck = false;
           propagatedBuildInputs = [