diff --git a/pkgs/development/python-modules/maison/default.nix b/pkgs/development/python-modules/maison/default.nix
index 2d7fee7df227..72abcafee704 100644
--- a/pkgs/development/python-modules/maison/default.nix
+++ b/pkgs/development/python-modules/maison/default.nix
@@ -12,7 +12,7 @@
 
 buildPythonPackage rec {
   pname = "maison";
-  version = "1.4.3";
+  version = "2.0.0";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -21,7 +21,7 @@ buildPythonPackage rec {
     owner = "dbatten5";
     repo = "maison";
     tag = "v${version}";
-    hash = "sha256-2hUmk91wr5o2cV3un2nMoXDG+3GT7SaIOKY+QaZY3nw=";
+    hash = "sha256-1hsnSYDoCO5swWm3B4R5eXs0Mn4s8arlCQKfsS1OWRk=";
   };
 
   pythonRelaxDeps = [ "pydantic" ];
@@ -44,7 +44,7 @@ buildPythonPackage rec {
     description = "Library to read settings from config files";
     mainProgram = "maison";
     homepage = "https://github.com/dbatten5/maison";
-    changelog = "https://github.com/dbatten5/maison/releases/tag/v${version}";
+    changelog = "https://github.com/dbatten5/maison/releases/tag/${src.tag}";
     license = licenses.mit;
     maintainers = with maintainers; [ fab ];
   };