diff --git a/pyproject.toml b/pyproject.toml
index d087144..9d2f2b8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ description = "This project contains scripts to run the Graphomotor Protocol at
 authors = [
   {name = "MoBI", email = "mobi@childmind.org"}
 ]
-license = "LGPL-2.1"
+license = "LGPL-2.1-only"
 readme = "README.md"
 requires-python = ">=3.12"
 dependencies = []