diff --git a/pkgs/development/python-modules/ukkonen/default.nix b/pkgs/development/python-modules/ukkonen/default.nix
index 4de244797b59..a4b88fd70cf9 100644
--- a/pkgs/development/python-modules/ukkonen/default.nix
+++ b/pkgs/development/python-modules/ukkonen/default.nix
@@ -8,14 +8,14 @@
 
 buildPythonPackage rec {
   pname = "ukkonen";
-  version = "1.0.1";
+  version = "1.1.0";
   format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "asottile";
     repo = "ukkonen";
     rev = "v${version}";
-    sha256 = "jG6VP/P5sadrdrmneH36/ExSld9blyMAAG963QS9+p0=";
+    sha256 = "sha256-vXyOLAiY92Df7g57quiSnOz8yhaIsm8MTB6Fbiv6axQ=";
   };
 
   nativeBuildInputs = [ cffi ];