1 files changed, 2 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index 70b0be7..5ce2047 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,8 @@
 [tox]
 envlist = python
 minversion = 2.4
+# https://github.com/jaraco/skeleton/issues/6
+tox_pip_extensions_ext_venv_update = true
 
 [testenv]
 deps =