diff --git a/tox.ini b/tox.ini
index ecc182e..bf6a4ef 100644
--- a/tox.ini
+++ b/tox.ini
@@ -7,7 +7,6 @@ ignore_basepython_conflict=true
 [testenv]
 basepython = python3
 usedevelop = True
-install_command = pip install -U {opts} {packages}
 setenv = VIRTUAL_ENV={envdir}
          PYTHONDONTWRITEBYTECODE = 1
          LANGUAGE=en_US