diff --git a/doc/requirements.txt b/doc/requirements.txt
new file mode 100644
index 000000000..23c20937d
--- /dev/null
+++ b/doc/requirements.txt
@@ -0,0 +1,10 @@
+# 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.
+openstackdocstheme>=1.18.1 # Apache-2.0
+sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
+sphinxcontrib-apidoc>=0.2.0  # BSD
+reno>=2.5.0 # Apache-2.0
+os-api-ref>=1.4.0 # Apache-2.0
+pymongo!=3.1,>=3.0.2 # Apache-2.0
+redis>=2.10.0 # MIT
diff --git a/setup.cfg b/setup.cfg
index fb4101e48..dbb4c45a6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -21,12 +21,6 @@ classifier =
 packages =
     zaqar
 
-[build_sphinx]
-all_files = 1
-build-dir = doc/build
-source-dir = doc/source
-warning-is-error = 1
-
 [entry_points]
 console_scripts =
     zaqar-bench = zaqar.bench.conductor:main
diff --git a/test-requirements.txt b/test-requirements.txt
index 14a317ff5..2534cf3b6 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -26,13 +26,7 @@ testtools>=2.2.0 # MIT
 oslo.db>=4.27.0 # Apache-2.0
 testresources>=2.0.0 # Apache-2.0/BSD
 os-testr>=1.0.0 # Apache-2.0
-
-# Documentation
-sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
-openstackdocstheme>=1.18.1 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
-reno>=2.5.0 # Apache-2.0
-os-api-ref>=1.4.0 # Apache-2.0
 
 #OSprofiler
 osprofiler>=1.4.0 # Apache-2.0
diff --git a/tox.ini b/tox.ini
index 5dfbe4bc4..b57dddf35 100644
--- a/tox.ini
+++ b/tox.ini
@@ -44,9 +44,11 @@ commands =
 commands = {posargs}
 
 [testenv:docs]
+deps =
+  -r{toxinidir}/doc/requirements.txt
+
 commands =
   doc8 doc/source
-  python setup.py build_sphinx
   sphinx-build -W -b html api-ref/source api-ref/build/html
 
 [testenv:api-ref]