diff --git a/doc/requirements.txt b/doc/requirements.txt
index bb94d5c..10d3b9f 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,7 +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.
-
-sphinx>=2.0.0,!=2.1.0 # BSD
+sphinx>=2.1.1 # BSD
 openstackdocstheme>=2.2.1 # Apache-2.0
 reno>=3.1.0 # Apache-2.0
diff --git a/requirements.txt b/requirements.txt
index 93741bf..4d386e3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 pbr>=1.4
-cliff!=1.16.0,>=1.14.0  # Apache-2.0
+cliff>=1.17.0  # Apache-2.0
 osc-lib>=1.0.1 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0
 oslo.serialization>=1.4.0 # Apache-2.0