diff --git a/pkgs/development/python-modules/python-constraint/default.nix b/pkgs/development/python-modules/python-constraint/default.nix
index ae00c34c3354..2ac55f35c9f1 100644
--- a/pkgs/development/python-modules/python-constraint/default.nix
+++ b/pkgs/development/python-modules/python-constraint/default.nix
@@ -8,14 +8,14 @@
 
 buildPythonPackage rec {
   pname = "python-constraint";
-  version = "1.4.0";
+  version = "2.4.0";
   format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "python-constraint";
     repo = "python-constraint";
-    rev = version;
-    sha256 = "1dv11406yxmmgkkhwzqicajbg2bmla5xfad7lv57zyahxz8jzz94";
+    tag = version;
+    sha256 = "sha256-Vi+dD/QmHfUrL0l5yTb7B1ILuXj3HYfT0QINdyfoqFo=";
   };
 
   nativeCheckInputs = [ pytestCheckHook ];