diff --git a/setup.py b/setup.py
index 0e0f61e3..cfec60d6 100644
--- a/setup.py
+++ b/setup.py
@@ -112,6 +112,7 @@ if __name__ == "__main__":
             "Programming Language :: Python :: 3.6",
             "Programming Language :: Python :: 3.7",
             "Programming Language :: Python :: 3.8",
+            "Programming Language :: Python :: 3.9",
             "Topic :: Software Development :: Debuggers",
             "Operating System :: Microsoft :: Windows",
             "Operating System :: MacOS",