Author: Diane Trout <diane@ghic.org>
Description: Our version of hatchling crashed on the empty license
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@
 dynamic = ["version"]
 description = "A data integration algorithm."
 readme = "README.md"
-license = ""
+license = "GPL-3.0-or-later"
 requires-python = ">=3.6"
 authors = [
     { name = "Kamil Slowikowski", email = "kslowikowski@gmail.com" },