diff --git a/requirements.txt b/requirements.txt
index 9ad89f3097..fefd2e268c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ six==1.12.0
 sphinx-argparse==0.2.5
 sphinx-autodoc-annotation==1.0-1
 sphinx-rtd-theme==0.4.3
-sphinx==1.8.5
+sphinx==2.0.1
 texttable==1.6.1
 tornado==6.0.2
 tox==3.8.6