-paramiko>=2.0 # LGPLv2.1+
-requests!=2.12.2,>=2.10.0 # Apache-2.0
-python-keystoneclient>=3.8.0 # Apache-2.0
-opnfv
-functest
+# The order of packages is significant, because pip processes them in the order
+# of appearance. Changing the order has an impact on the overall integration
+# process, which may cause wedges in the gate later.
+paramiko # LGPLv2.1+
+requests # Apache-2.0
+python-keystoneclient!=2.1.0 # Apache-2.0
+toml # MIT
+opnfv # Apache-2.0
+functest # Apache-2.0
+xtesting # Apache-2.0
+pika # BSD