diff --git a/pkgs/development/python-modules/xformers/default.nix b/pkgs/development/python-modules/xformers/default.nix
index 69c7583c9eac..1c72490531c2 100644
--- a/pkgs/development/python-modules/xformers/default.nix
+++ b/pkgs/development/python-modules/xformers/default.nix
@@ -29,20 +29,20 @@
 }:
 let
   inherit (torch) cudaCapabilities cudaPackages cudaSupport;
-  version = "0.0.23.post1";
+  version = "0.0.28.post3";
 in
 buildPythonPackage {
   pname = "xformers";
   inherit version;
   format = "setuptools";
 
-  disabled = pythonOlder "3.7";
+  disabled = pythonOlder "3.9";
 
   src = fetchFromGitHub {
     owner = "facebookresearch";
     repo = "xformers";
     rev = "refs/tags/v${version}";
-    hash = "sha256-AJXow8MmX4GxtEE2jJJ/ZIBr+3i+uS4cA6vofb390rY=";
+    hash = "sha256-23tnhCHK+Z0No8fqZxkgDFp2VIgXZR4jpM+pkb/vvmw=";
     fetchSubmodules = true;
   };