diff --git a/tox.ini b/tox.ini
index 337816d..98c523f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -18,6 +18,7 @@ extras = test
 commands=
     pytest -vvv --ignore=build --html=pytest-report.html \
        --junit-xml=pytest-report.xml --self-contained-html \
+       --durations=10 \
     xdist: -n auto \
     cov: --e3-cov-rewrite {envsitepackagesdir} src \
     cov: --cov {envsitepackagesdir}/e3/aws --cov-report= --cov-fail-under=0 \