diff --git a/docs/requirements.txt b/docs/requirements.txt
index 669371546..54408e18a 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1 +1,9 @@
-sphinx==1.8.4
+sphinx>2
+mkdocs>1.0.4
+sphinx-rtd-theme>0.4.3
+mock==1.0.1
+pillow==5.4.1
+alabaster<0.8
+commonmark==0.8.1
+recommonmark==0.5.0
+