diff --git a/setup.cfg b/setup.cfg
index 5678d17..dae3302 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -16,6 +16,7 @@ classifiers =
    Programming Language :: Python :: 3.10
    Programming Language :: Python :: 3.11
    Programming Language :: Python :: 3.12
+   Programming Language :: Python :: 3.13
    Topic :: System :: Archiving :: Backup
 
 [options]