diff --git a/test-requirements.txt b/test-requirements.txt
index cd8154b..ba70259 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,10 +1,13 @@
+# 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.
 hacking>=0.9.2,<0.10
 # needed for doc build
 sphinx>=1.1.2,!=1.2.0,<1.3
 python-subunit>=0.0.18
-oslosphinx
+oslosphinx>=2.2.0  # Apache-2.0
 mox>=0.5.3
 mock>=1.0
 coverage>=3.6
-oslotest
-stevedore>=0.14
+oslotest>=1.1.0  # Apache-2.0
+stevedore>=1.0.0  # Apache-2.0