diff --git a/doc/requirements.txt b/doc/requirements.txt
index 309e3f4e..dcc6aab0 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -2,7 +2,7 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 openstackdocstheme>=1.18.1 # Apache-2.0
-sphinx!=1.6.6,>=1.6.2 # BSD
+sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
 doc8>=0.6.0 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
 
diff --git a/requirements.txt b/requirements.txt
index 0872adae..1347bdda 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ pbr!=2.1.0,>=2.0.0 # Apache-2.0
 alembic>=0.8.10 # MIT
 debtcollector>=1.2.0 # Apache-2.0
 oslo.i18n>=3.15.3 # Apache-2.0
-oslo.config>=5.1.0 # Apache-2.0
+oslo.config>=5.2.0 # Apache-2.0
 oslo.utils>=3.33.0 # Apache-2.0
 SQLAlchemy!=1.1.5,!=1.1.6,!=1.1.7,!=1.1.8,>=1.0.10 # MIT
 sqlalchemy-migrate>=0.11.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index c632b63e..1cfea554 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,3 +1,6 @@
+# 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!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 eventlet!=0.18.3,!=0.20.1,<0.21.0,>=0.18.2 # MIT