diff --git a/tox.ini b/tox.ini
index aa4de4b..44107ee 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,7 +12,8 @@ extras =
     ftp
     tests
 commands =
-    {env: PYTEST_COMMAND}
+    pip freeze --all --no-input
+    {env:PYTEST_COMMAND}
 
 [testenv:build_docs]
 changedir = docs