diff --git a/pkgs/development/python-modules/qcodes/default.nix b/pkgs/development/python-modules/qcodes/default.nix
index b8b7ca6a5eb9..72f04c72a8de 100644
--- a/pkgs/development/python-modules/qcodes/default.nix
+++ b/pkgs/development/python-modules/qcodes/default.nix
@@ -54,7 +54,7 @@ buildPythonPackage rec {
   disabled = pythonOlder "3.9";
 
   src = fetchFromGitHub {
-    owner = "QCoDeS";
+    owner = "microsoft";
     repo = "Qcodes";
     rev = "refs/tags/v${version}";
     hash = "sha256-AggAVq/yfJUZRwoQb29QoIbVIAdV3solKCjivqucLZk=";
@@ -147,6 +147,11 @@ buildPythonPackage rec {
     "qcodes"
   ];
 
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace-fail 'default-version = "0.0"' 'default-version = "${version}"'
+  '';
+
   postInstall = ''
     export HOME="$TMPDIR"
   '';