diff --git a/requirements_dev.txt b/requirements_dev.txt
index cd6dd94b..3f1ba203 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -23,7 +23,7 @@ pytest-mock==1.10.0
 pytest-cov==2.5.1
 
 # docs
-Sphinx==1.7.7
+Sphinx==1.7.8
 Pygments==2.2.0
 sphinxcontrib-asyncio==0.2.0
 sphinx-rtd-theme==0.4.1