diff --git a/pkgs/development/python-modules/chiapos/default.nix b/pkgs/development/python-modules/chiapos/default.nix
index f4047c26f5cf..6024c8a5ef6c 100644
--- a/pkgs/development/python-modules/chiapos/default.nix
+++ b/pkgs/development/python-modules/chiapos/default.nix
@@ -15,12 +15,12 @@
 
 buildPythonPackage rec {
   pname = "chiapos";
-  version = "1.0.8";
+  version = "1.0.9";
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "64529b7f03e9ec0c1b9be7c7c1f30d4498e5d931ff2dbb10a9cc4597029d69f0";
+    sha256 = "sha256-emEHIR74RiIDK04etO/6G7tjzTufOVl4rLRWbEsQit0=";
   };
 
   patches = [