diff --git a/pyproject.toml b/pyproject.toml
index 7c0cf690f..e04778dbf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,8 @@
 [project]
 name = "plinth"
 description = "A web front end for administering FreedomBox"
-license = {file = "COPYING.md"}
+license = "AGPL-3.0-or-later"
+license-files = ["COPYING.md"]
 dynamic = ["version"]
 classifiers = [
     "Development Status :: 5 - Production/Stable",
@@ -9,8 +10,6 @@ classifiers = [
     "Environment :: Web Environment",
     "Framework :: Django",
     "Intended Audience :: End Users/Desktop",
-    "License :: DFSG approved",
-    "License :: OSI Approved :: GNU Affero General Public License v3 or later (AGPLv3+)",
     "Natural Language :: English",
     "Operating System :: POSIX :: Linux",
     "Programming Language :: JavaScript",