diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 179946f9e8f9..8889de75acd0 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -8536,7 +8536,7 @@ in {
     meta = {
       description = "A build system for software projects in a variety of languages";
       homepage = "http://www.pantsbuild.org/";
-      license = licenses.asl2;
+      license = licenses.asl20;
       maintainers = with maintainers; [ copumpkin ];
     };
   };