diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ddd2b04c..e3bd3ebc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -64,6 +64,8 @@ jobs:
           - "3.6"
           - "3.7"
           - "3.8"
+          - "3.9"
+          - "3.10"
     steps:
     - name: Repository checkout
       uses: actions/checkout@v2
diff --git a/setup.cfg b/setup.cfg
index 6ae9d37b..69b81c0e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = pylxd
-version = 2.3.1a
+version = 2.3.1
 description = python library for LXD
 long_description = file: README.rst
 author = Paul Hummer and others (see CONTRIBUTORS.rst)
@@ -11,11 +11,7 @@ classifier =
     Intended Audience :: System Administrators
     License :: OSI Approved :: Apache Software License
     Operating System :: POSIX :: Linux
-    Programming Language :: Python
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.6
-    Programming Language :: Python :: 3.7
-    Programming Language :: Python :: 3.8
 
 [options]
 python_requires = >= 3.6
@@ -43,24 +39,20 @@ format =
     isort == 5.6.4
 check =
     mypy
-    # add type stubs for libs
-    types-requests
-    types-pkg_resources
-    types-python-dateutil
 doc =
     Sphinx
 
 [flake8]
 show-source = True
 ignore = E203, E266, E501, W503, W504
-builtins = _
-exclude = .venv,.git,.tox,dist,doc,*egg,build
+exclude = .git, .tox, dist, doc, *egg, build
 
 [mypy]
-incremental = False
+ignore_missing_imports = True
+install_types = True
+non_interactive = True
 warn_return_any = True
 warn_unused_configs = True
-ignore_missing_imports = True
 
 [build_sphinx]
 source-dir = doc/source