diff --git a/setup.py b/setup.py
index b64e6df..e2f03d2 100644
--- a/setup.py
+++ b/setup.py
@@ -39,6 +39,9 @@
         'Development Status :: 3 - Alpha',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
+        'Operating System :: Microsoft :: Windows :: Windows 10',
+        'Operating System :: POSIX :: Linux',
         'Intended Audience :: Education',
         'Intended Audience :: Science/Research',
         'Framework :: Matplotlib',