diff --git a/tox.ini b/tox.ini
index aa91e89a2..3af5eb1a9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,6 @@
 [tox]
 minversion = 3.18.0
 envlist = pep8,py
-skipsdist = True
 
 # Automatic envs (pyXX) will only use the python version appropriate to that
 # env and ignore basepython inherited from [testenv] if we set
@@ -70,7 +69,7 @@ commands =
   sphinx-build -a -E -W --keep-going -b html doc/source doc/build/html
 
 [testenv:pdf-docs]
-whitelist_externals = make
+allowlist_externals = make
 description =
   Build PDF documentation.
 envdir = {toxworkdir}/docs