diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b9c78ba..1814eec 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -28,7 +28,7 @@ jobs:
             ${{ runner.os }}-${{ matrix.python-version }}-pip-
             ${{ runner.os }}-${{ matrix.python-version }}
       - name: Install Deps
-        run: python -m pip install -U 'tox<4' setuptools virtualenv wheel
+        run: python -m pip install -U tox setuptools virtualenv wheel
       - name: Install and Run Tests
         run: tox -e py
         if: runner.os != 'macOS'
@@ -57,7 +57,7 @@ jobs:
             ${{ runner.os }}-${{ matrix.python-version }}-pip-
             ${{ runner.os }}-${{ matrix.python-version }}-
       - name: Install Deps
-        run: python -m pip install -U 'tox<4'
+        run: python -m pip install -U tox
       - name: Run lint
         run: tox -epep8
   cover:
@@ -79,7 +79,7 @@ jobs:
             ${{ runner.os }}-${{ matrix.python-version }}-pip-
             ${{ runner.os }}-${{ matrix.python-version }}-
       - name: Install Deps
-        run: python -m pip install -U 'tox<4'
+        run: python -m pip install -U tox
       - name: Run coverxml
         run: tox -ecoverxml
       - name: codecov
@@ -112,7 +112,7 @@ jobs:
             ${{ runner.os }}-pip-
             ${{ runner.os }}-
       - name: Install Deps
-        run: python -m pip install -U 'tox<4'
+        run: python -m pip install -U tox
       - name: Build Docs
         run: tox -edocs
       - uses: actions/upload-artifact@v3