Update setup.py

setup.py

diff --git a/setup.py b/setup.py
index 3b66d2e..0be5a37 100644
--- a/setup.py
+++ b/setup.py
@@ -52,6 +52,7 @@
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",
         "Topic :: Internet :: WWW/HTTP :: Dynamic Content",