diff --git a/doc/requirements.txt b/doc/requirements.txt
index b93ed8217e2..6b7e1e3a74b 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -10,3 +10,4 @@ os-api-ref>=1.4.0 # Apache-2.0
 ddt>=1.0.1 # MIT
 fixtures>=3.0.0 # Apache-2.0/BSD
 sphinxcontrib-apidoc>=0.2.0  # BSD
+sphinx-feature-classification>=0.1.0 # Apache 2.0
diff --git a/requirements.txt b/requirements.txt
index 347ccac2fab..3fb1d598319 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -51,7 +51,6 @@ retrying!=1.3.0,>=1.2.3 # Apache-2.0
 Routes>=2.3.1 # MIT
 taskflow>=2.16.0 # Apache-2.0
 rtslib-fb>=2.1.65 # Apache-2.0
-sphinx-feature-classification>=0.1.0 # Apache 2.0
 simplejson>=3.5.1 # MIT
 six>=1.10.0 # MIT
 SQLAlchemy!=1.1.5,!=1.1.6,!=1.1.7,!=1.1.8,>=1.0.10 # MIT