diff --git a/tox.ini b/tox.ini
index e367a4f4..0ee9c0ec 100644
--- a/tox.ini
+++ b/tox.ini
@@ -40,12 +40,12 @@ commands =
 [testenv:testcore]
 commands =
     {envpython} --version
-    py.test -v -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 tests/test_examples.py
+    py.test -v --basetemp="{envtmpdir}" tests/test_examples.py
 
 [testenv:docs]
 ; basepython = ~/.pyenv/versions/3.6.12/bin/python