diff --git a/.circleci/config.yml b/.circleci/config.yml
index 35ab4b8a..167ae520 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -72,6 +72,12 @@ jobs:
       - image: circleci/python:3.9
         environment:
           TOXENV: py39-core
+  py310-core:
+    <<: *common
+    docker:
+      - image: circleci/python:3.10
+        environment:
+          TOXENV: py310-core
   pypy3-core:
     <<: *common
     docker:
diff --git a/setup.py b/setup.py
index 14567643..79241342 100644
--- a/setup.py
+++ b/setup.py
@@ -77,6 +77,7 @@ setup(
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: Implementation :: PyPy',
     ],
 )
diff --git a/tox.ini b/tox.ini
index 049e8e3a..3148e02b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 envlist=
-    py{36,37,38,py3}-core
+    py{36,37,38,39,310,py3}-core
     lint
     docs
 
@@ -30,6 +30,7 @@ basepython =
     py37: python3.7
     py38: python3.8
     py39: python3.9
+    py310: python3.10
     pypy3: pypy3
 extras=
     test