1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index e5fe6e4e..2663e2ef 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,7 +9,7 @@ skipsdist = True
 
 [testenv]
 usedevelop = True
-install_command = pip install -U {opts} {packages}
+install_command = pip install {opts} {packages}
 deps =
   -rrequirements.txt
   -rrequirements-test.txt