diff --git a/requirements.txt b/requirements.txt
index 9d910543..23f6e584 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ flake8==3.2.1
 wheel==0.29.0
 setuptools==30.2.0
 -e .[sa]
-sphinx==1.4.9
+sphinx==1.5
 tox==2.5.0
 pytest==3.0.4
 pytest-cov==2.4.0