diff --git a/doc/requirements.txt b/doc/requirements.txt
index 2d407c4..6272488 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,12 +1,3 @@
-# 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.
-# Order matters to the pip dependency resolver, so sorting this file
-# changes how packages are installed.  New dependencies should be
-# added in alphabetical order, however, some dependencies may need to
-# be installed in a specific order.
-#
-# Requirements for docs
 openstackdocstheme>=2.2.1 # Apache-2.0
 reno>=3.1.0 # Apache-2.0
 sphinx>=2.0.0,!=2.1.0 # BSD
diff --git a/requirements.txt b/requirements.txt
index 24aee9c..ad0b989 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,12 +1,7 @@
-# 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.
-# Order matters to the pip dependency resolver, so sorting this file
-# changes how packages are installed.  New dependencies should be
-# added in alphabetical order, however, some dependencies may need to
-# be installed in a specific order.
-#
-# PBR should always appear first
+# Requirements lower bounds listed here are our best effort to keep them up to
+# date but we do not test them so no guarantee of having them all correct. If
+# you find any incorrect lower bounds, let us know or propose a fix.
+
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 python-zaqarclient>=1.0.0 # Apache-2.0
 Babel!=2.4.0,>=2.3.4 # BSD
diff --git a/test-requirements.txt b/test-requirements.txt
index 89db7ce..b113f7a 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,14 +1,4 @@
-# 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.
-# Order matters to the pip dependency resolver, so sorting this file
-# changes how packages are installed.  New dependencies should be
-# added in alphabetical order, however, some dependencies may need to
-# be installed in a specific order.
-#
-# Hacking should appear first in case something else depends on pep8
 hacking>=3.0.1,<3.1.0 # Apache-2.0
 
-
 coverage!=4.4,>=4.0 # Apache-2.0
 testtools>=2.2.0 # MIT