diff --git a/tox.ini b/tox.ini
index e1e2b5fbb..67eddcc7e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -95,7 +95,6 @@ commands =
   whereto doc/build/html/.htaccess doc/test/redirect-tests.txt
 
 [testenv:pdf-docs]
-basepython = python3
 deps = {[testenv:docs]deps}
 allowlist_externals =
   make