diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 74ccd03d..ca8011cf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "pypy3.9"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "pypy3.9"]
         os: [ubuntu-latest, macos-latest, windows-latest]
         exclude:
           - os: macos-latest
diff --git a/setup.cfg b/setup.cfg
index b01c1719..56595ebd 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -25,6 +25,7 @@ classifiers =
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
     Programming Language :: Python :: Implementation :: PyPy
     Topic :: Utilities
 
diff --git a/tox.ini b/tox.ini
index be6be2ac..d8862a8b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 [tox]
 min_version = 4.4
 envlist =
-    py{37,38,39,310,py3}-{base,cryptography-only,pycryptodome-norsa,compatibility},
+    py{37,38,39,310,311,py3}-{base,cryptography-only,pycryptodome-norsa,compatibility},
     lint
 skip_missing_interpreters = True
 
@@ -11,6 +11,7 @@ python =
     3.8: py38-{base,cryptography-only,pycryptodome-norsa,compatibility}
     3.9: py39-{base,cryptography-only,pycryptodome-norsa,compatibility}
     3.10: py310-{base,cryptography-only,pycryptodome-norsa,compatibility}
+    3.11: py311-{base,cryptography-only,pycryptodome-norsa,compatibility}
     pypy-3.9: pypy3-{base,cryptography-only,pycryptodome-norsa,compatibility}
 
 [testenv:basecommand]