diff --git a/dev-requirements.txt b/dev-requirements.txt
index 7e3a31c6..0d474df5 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,6 +1,6 @@
 -rrequirements.txt
 
-sphinx==1.5.5
+sphinx==1.5.6
 pytest==3.0.7
 pep8==1.7.0
 pytest-catchlog==1.2.2