1 files changed, 1 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index d02b0307..16c8f5b8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,6 +8,7 @@ envlist =
 [testenv]
 deps =
     pytest
+    pip==19.1.1
 extras =
     pipfile
     pyproject