diff --git a/pkgs/development/python-modules/hstspreload/default.nix b/pkgs/development/python-modules/hstspreload/default.nix
index c7179a646c31..94a241123942 100644
--- a/pkgs/development/python-modules/hstspreload/default.nix
+++ b/pkgs/development/python-modules/hstspreload/default.nix
@@ -7,14 +7,14 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "hstspreload";
-  version = "2026.4.1";
+  version = "2026.5.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "sethmlarson";
     repo = "hstspreload";
     tag = finalAttrs.version;
-    hash = "sha256-ve2tBOuSL/GWpnOK+AuFtNNXtSPDWj7Cz5LiVAVjrwU=";
+    hash = "sha256-QmhQJqt75rP5YWBLJ3fA7Ud7o6AWIpUUSoJ5tAA9pPo=";
   };
 
   build-system = [ setuptools ];