diff --git a/.github/workflows/core.yml b/.github/workflows/core.yml
index 7b51b8be..445e6e0e 100644
--- a/.github/workflows/core.yml
+++ b/.github/workflows/core.yml
@@ -25,7 +25,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install "tox<4"
+          pip install tox
 
       - name: Python Lint
         if: ${{ matrix.python-version != '3.6' }}
diff --git a/tox.ini b/tox.ini
index c5cc66d3..4e7b543a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -44,12 +44,12 @@ commands =
 [testenv:testcore]
 commands =
     {envpython} --version
-    py.test -v --basetemp="{envtmpdir}" -k "not skip_ci" tests --ignore tests/test_examples.py
+    py.test -v --basetemp={envtmpdir} -k "not skip_ci" tests --ignore tests/test_examples.py
 
 [testenv:testexamples]
 commands =
     {envpython} scripts/install_devplatforms.py
-    py.test -v --basetemp="{envtmpdir}" tests/test_examples.py
+    py.test -v --basetemp={envtmpdir} tests/test_examples.py
 
 [testenv:docs]
 deps =