diff --git a/doc/requirements.txt b/doc/requirements.txt
new file mode 100644
index 0000000..d3348d6
--- /dev/null
+++ b/doc/requirements.txt
@@ -0,0 +1,2 @@
+sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
+openstackdocstheme>=1.18.1 # Apache-2.0