diff --git a/doc/requirements.txt b/doc/requirements.txt
index 480e2812..ca0cebb1 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,7 +1,8 @@
 # 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!=1.6.6,!=1.6.7,>=1.6.2 # BSD
+sphinx!=1.6.6,!=1.6.7,>=1.6.2,<2.0.0;python_version=='2.7'  # BSD
+sphinx!=1.6.6,!=1.6.7,>=1.6.2;python_version>='3.4'  # BSD
 os-client-config>=1.28.0 # Apache-2.0
 openstackdocstheme>=1.18.1 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
diff --git a/requirements.txt b/requirements.txt
index 223f759a..1f185a41 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ pbr!=2.1.0,>=2.0.0 # Apache-2.0
 requests>=2.14.2 # Apache-2.0
 six>=1.10.0 # MIT
 stevedore>=1.20.0 # Apache-2.0
-jsonschema<3.0.0,>=2.6.0 # MIT
+jsonschema>=2.6.0 # MIT
 
 # Oslo Packages
 oslo.i18n>=3.15.3 # Apache-2.0