diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index 2b733c8..0000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,60 +0,0 @@
-version: 2
-
-shared: &shared
-  working_directory: ~/circleci-codetiming
-  steps:
-    - checkout
-    - run:
-        name: Install
-        command: |
-          python -m pip install flit --user
-          python -m flit install --deps=develop
-    - run:
-        name: Test
-        command: |
-          python -m tox --recreate
-
-jobs:
-  "test-py36":
-    <<: *shared
-    docker:
-      - image: circleci/python:3.6
-
-  "test-py37":
-    <<: *shared
-    docker:
-      - image: circleci/python:3.7
-
-  "test-py38":
-    <<: *shared
-    docker:
-      - image: circleci/python:3.8
-
-  "test-py39":
-    <<: *shared
-    docker:
-      - image: circleci/python:3.9
-
-  "test-py310":
-    <<: *shared
-    docker:
-      - image: circleci/python:3.10
-
-  "test-py311-no-mypy":
-    <<: *shared
-    environment:
-      TOX_SKIP_ENV: mypy
-    docker:
-      - image: circleci/python:3.11-rc
-
-workflows:
-  version: 2
-
-  development-workflow:
-    jobs:
-      - "test-py36"
-      - "test-py37"
-      - "test-py38"
-      - "test-py39"
-      - "test-py310"
-      - "test-py311-no-mypy"
diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
new file mode 100644
index 0000000..89d1975
--- /dev/null
+++ b/.github/workflows/unit_tests.yml
@@ -0,0 +1,27 @@
+name: unit_tests
+on: [push, pull_request]
+
+jobs:
+  tests:
+    name: ${{ matrix.name }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - {name: Linux36, python: '3.6', os: ubuntu-latest, tox: py36}
+          - {name: Linux37, python: '3.7', os: ubuntu-latest, tox: py37}
+          - {name: Linux38, python: '3.8', os: ubuntu-latest, tox: py38}
+          - {name: Linux39, python: '3.9', os: ubuntu-latest, tox: py39}
+          - {name: Linux310, python: '3.10', os: ubuntu-latest, tox: py310}
+          - {name: Linux311, python: '3.11', os: ubuntu-latest, tox: py311}
+          - {name: Style, python: '3.10', os: ubuntu-latest, tox: style}
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python }}
+    - run: pip install tox
+    - name: Run app tox tests
+      run: |
+        tox -e ${{ matrix.tox }}
diff --git a/tox.ini b/tox.ini
index 3462444..2959437 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
-isolated_build = True
-envlist = py, black, interrogate, mypy
+isolated_build = true
+envlist = py, style
 
 
 [testenv]
@@ -8,21 +8,20 @@ deps =
     pytest
     pytest-cov
 commands =
-    python -m pytest --cov=codetiming --cov-fail-under=100 --cov-report=term-missing
+    {envpython} -m pytest --cov=codetiming --cov-fail-under=100 --cov-report=term-missing
 
 
-[testenv:black]
-deps = black
-commands = python -m black --check codetiming/
-
-
-[testenv:interrogate]
-deps = interrogate
+[testenv:style]
 skip_install = true
-commands =
-    interrogate --config=pyproject.toml
-
-
-[testenv:mypy]
-deps = mypy
-commands = python -m mypy --strict codetiming/
+deps = 
+    black
+    flake8
+    interrogate
+    isort
+    mypy
+commands = 
+    {envpython} -m black --check --quiet codetiming/
+    {envpython} -m flake8 codetiming/
+    {envpython} -m interrogate --quiet --config=pyproject.toml
+    {envpython} -m isort --check codetiming/
+    {envpython} -m mypy --strict codetiming/