diff --git a/requirements_docs.txt b/requirements_docs.txt
index 0d1f2a95fa27f03803427778e3780ba8994e98e4..68fbec8cf9771a9073f46aae096b21ecdd644120 100644
--- a/requirements_docs.txt
+++ b/requirements_docs.txt
@@ -1,3 +1,3 @@
-Sphinx==1.6.4
+Sphinx==1.6.5
 sphinx-autodoc-typehints==1.2.3
 sphinx-autodoc-annotation==1.0.post1