diff --git a/.travis.yml b/.travis.yml
index ecdd411..4740520 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,7 @@ python:
   - "3.6"
   - "3.7"
   - "3.8"
+  - "3.9"
   - "nightly"
 matrix:
   allow_failures:
diff --git a/setup.py b/setup.py
index 2baffd1..60c9b3a 100644
--- a/setup.py
+++ b/setup.py
@@ -33,6 +33,7 @@ setup(
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
         'Topic :: Communications',
         'Topic :: Internet'
     ],
diff --git a/tox.ini b/tox.ini
index f0453a5..06a8f33 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,6 +8,7 @@ envlist =
     py36,
     py37,
     py38,
+    py39,
     coverage,
     flake8,
     check-manifest