diff --git a/pkgs/development/python-modules/waymax/default.nix b/pkgs/development/python-modules/waymax/default.nix
index 9ece18dacaee..6fb36ddcf8b8 100644
--- a/pkgs/development/python-modules/waymax/default.nix
+++ b/pkgs/development/python-modules/waymax/default.nix
@@ -21,7 +21,7 @@
 
 buildPythonPackage {
   pname = "waymax";
-  version = "0-unstable-2025-03-25";
+  version = "0-unstable-2024-03-23";
   pyproject = true;
 
   src = fetchFromGitHub {