diff --git a/pkgs/development/python-modules/ziamath/default.nix b/pkgs/development/python-modules/ziamath/default.nix
index 817d60b33811..4771d51b9598 100644
--- a/pkgs/development/python-modules/ziamath/default.nix
+++ b/pkgs/development/python-modules/ziamath/default.nix
@@ -12,14 +12,14 @@
 }:
 buildPythonPackage rec {
   pname = "ziamath";
-  version = "0.12";
+  version = "0.13";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "cdelker";
     repo = "ziamath";
     tag = version;
-    hash = "sha256-ShR9O170Q26l6XHSe2CO4bEuQm4JNOxiPZ2kbKDLNEU=";
+    hash = "sha256-4TSKxCCU4DP+CQKJoi3nBqstHVUb9ycz+JAlYctxGxY=";
   };
 
   build-system = [ setuptools ];