diff --git a/.appveyor.yml b/.appveyor.yml
index 863f531f..f67a9c20 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -10,6 +10,10 @@ environment:
     TOXENV: py36
   - PYTHON: C:\Python37-x64
     TOXENV: py37
+  - PYTHON: C:\Python38-x64
+    TOXENV: py38
+  - PYTHON: C:\Python39-x64
+    TOXENV: py39
 
 build: off
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 78f339c4..6897be55 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,6 +11,9 @@ jobs:
           - py27
           - py36
           - py37
+          - py38
+          - py39
+          - py310
           - pre-commit
           - mypy
           - docs
@@ -19,6 +22,6 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
         with:
-          python-version: 3.7
+          python-version: 3.9
       - run: pip install tox
       - run: tox -e ${{ matrix.tox }}
diff --git a/tox.ini b/tox.ini
index ce08dbb2..8679a752 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,7 +3,7 @@ filterwarnings =
     ignore:.*will be deprecated in the next major release. Please use the more general entry-point offered in.*:DeprecationWarning
 
 [tox]
-envlist = py27, py36, py37, mypy, pre-commit
+envlist = py27, py3{6,7,8,9,10}, mypy, pre-commit
 
 [testenv]
 deps =
@@ -12,7 +12,7 @@ commands =
     python -m pytest --cov --capture=no --benchmark-skip {posargs:tests}
 
 [testenv:benchmark]
-basepython = python3.7
+basepython = python3.9
 deps =
     -rrequirements-dev.txt
 commands =
@@ -23,7 +23,7 @@ commands =
         --benchmark-histogram=.benchmarks/benchmark
 
 [testenv:mypy]
-basepython = python3.7
+basepython = python3.9
 commands =
     mypy bravado_core tests