diff --git a/requirements_docs.txt b/requirements_docs.txt
index 85405fb6eab..b39476859f2 100644
--- a/requirements_docs.txt
+++ b/requirements_docs.txt
@@ -1,3 +1,3 @@
-Sphinx==1.4.8
+Sphinx==1.4.9
 sphinx-autodoc-typehints==1.1.0
 sphinx-autodoc-annotation==1.0.post1