diff --git a/setup.cfg b/setup.cfg
index 5aeb5079..e7f17d28 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -18,6 +18,8 @@ classifier =
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
+    Programming Language :: Python :: 3.13
+    Programming Language :: Python :: 3 :: Only
 
 [files]
 packages =