diff --git a/requirements_dev.txt b/requirements_dev.txt
index 1a33e65..e7fee76 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -5,7 +5,7 @@ watchdog==0.8.3
 flake8==3.2.1
 tox==2.4.1
 coverage==4.3.1
-Sphinx==1.5
+Sphinx==1.5.1
 cryptography==1.7.1
 PyYAML==3.12
 pytest==3.0.5