diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 61d3861bd..067cd8f18 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: [3.5, 3.6, 3.7, pypy3]
+        python: [3.5, 3.6, 3.7, 3.9, pypy3]
 
     steps:
     - uses: actions/checkout@v1
diff --git a/setup.py b/setup.py
index 0ebcc3455..4f0d42365 100644
--- a/setup.py
+++ b/setup.py
@@ -64,6 +64,7 @@
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.9',
         'License :: OSI Approved :: Apache Software License',
     ],
 )