diff --git a/tox.ini b/tox.ini
index d668f9b3e..1787eee39 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,5 +19,5 @@ setenv =
 deps =
     -r{toxinidir}/dev-requirements.txt
 commands =
-    pip install -U pip
+    python -m pip install --upgrade pip
     pytest