diff --git a/setup.py b/setup.py
index ccf7595..d8e3987 100644
--- a/setup.py
+++ b/setup.py
@@ -29,7 +29,8 @@ setup(name='wavinfo',
 #           "Programming Language :: Python :: 3.5",
           "Programming Language :: Python :: 3.6",
           "Programming Language :: Python :: 3.7",
-          "Programming Language :: Python :: 3.8"],
+          "Programming Language :: Python :: 3.8",
+          "Programming Language :: Python :: 3.9"],
       keywords='waveform metadata audio ebu smpte avi library film tv editing editorial',
       install_requires=['lxml', 'ear'],
       entry_points={