diff --git a/tox.ini b/tox.ini
index ce5c3be..49d2a6d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -26,17 +26,19 @@ deps =
     pytest-aiohttp
     coverage
     codecov
-changedir = {homedir}/tmp
+setenv =
+    COVERAGE_FILE = {toxworkdir}/.coverage
+changedir = {envtmpdir}
 commands =
-	/usr/bin/git clone https://github.com/mitre/caldera.git --recursive {homedir}/tmp
-	/bin/rm -rf {homedir}/tmp/plugins/atomic
-	python -m pip install -r {homedir}/tmp/requirements.txt
-	/usr/bin/cp -R {toxinidir} {homedir}/tmp/plugins/atomic
-    coverage run -p -m pytest --tb=short --rootdir={homedir}/tmp -Werror plugins/atomic/tests
+    git clone https://github.com/mitre/caldera.git --recursive {envtmpdir}
+    rm -rf {envtmpdir}/plugins/atomic
+    python -m pip install -r {envtmpdir}/requirements.txt
+    cp -R {toxinidir} {envtmpdir}/plugins/atomic
+    coverage run -p -m pytest --tb=short --rootdir={envtmpdir} -Werror plugins/atomic/tests
 allowlist_externals =
-	/usr/bin/sudo *
-	/usr/bin/git *
-	/usr/bin/cp *
+    git
+    rm
+    cp
 
 [testenv:py38]
 description = run tests
@@ -47,23 +49,25 @@ deps =
     pytest-aiohttp
     coverage
     codecov
-changedir = {homedir}/tmp
+setenv =
+    COVERAGE_FILE = {toxworkdir}/.coverage
+changedir = {envtmpdir}
 commands =
-	/usr/bin/git clone https://github.com/mitre/caldera.git --recursive {homedir}/tmp
-	/bin/rm -rf {homedir}/tmp/plugins/atomic
-	python -m pip install -r {homedir}/tmp/requirements.txt
-	/usr/bin/cp -R {toxinidir} {homedir}/tmp/plugins/atomic
-    coverage run -p -m pytest --tb=short --rootdir={homedir}/tmp {homedir}/tmp/plugins/atomic/tests
+    git clone https://github.com/mitre/caldera.git --recursive {envtmpdir}
+    rm -rf {envtmpdir}/plugins/atomic
+    python -m pip install -r {envtmpdir}/requirements.txt
+    cp -R {toxinidir} {envtmpdir}/plugins/atomic
+    coverage run -p -m pytest --tb=short --rootdir={envtmpdir} {envtmpdir}/plugins/atomic/tests
 allowlist_externals =
-	/usr/bin/sudo *
-	/usr/bin/git *
-	/usr/bin/cp *
+    git
+    rm
+    cp
 
 [testenv:coverage]
 deps =
     coverage
 skip_install = true
-changedir = {homedir}/tmp
+changedir = {toxworkdir}
 commands =
     coverage combine
     coverage html
@@ -74,7 +78,7 @@ deps =
     coveralls
     coverage
 skip_install = true
-changedir = {homedir}/tmp
+changedir = {toxworkdir}
 commands =
     coverage combine
     coverage xml