diff --git a/lib/tempest b/lib/tempest
index d6d6020adf..681da1e654 100644
--- a/lib/tempest
+++ b/lib/tempest
@@ -419,7 +419,7 @@ function create_tempest_accounts {
 # install_tempest() - Collect source and prepare
 function install_tempest {
     git_clone $TEMPEST_REPO $TEMPEST_DIR $TEMPEST_BRANCH
-    pip_install "tox<1.7"
+    pip_install tox
 }
 
 # init_tempest() - Initialize ec2 images