diff --git a/pkgs/development/python-modules/hdate/default.nix b/pkgs/development/python-modules/hdate/default.nix
index 0134d4b9398e..bab78d34c111 100644
--- a/pkgs/development/python-modules/hdate/default.nix
+++ b/pkgs/development/python-modules/hdate/default.nix
@@ -14,14 +14,14 @@
 
 buildPythonPackage rec {
   pname = "hdate";
-  version = "1.1.0";
+  version = "1.1.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "py-libhdate";
     repo = "py-libhdate";
     tag = "v${version}";
-    hash = "sha256-NNaspGNfrtZqo9sUOJVyYlJT7dhr/nzueuaqewUMlpM=";
+    hash = "sha256-75nccnGUA9sZbJKy+vgJhPFxCJvxBz9u9ni5Y4vNu4A=";
   };
 
   pythonRelaxDeps = [