diff --git a/requirements.txt b/requirements.txt
index 49e33b71e8..1bc001f037 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ blinker==1.3
 psycopg2==2.7.3.2
 python-dateutil==2.4.2
 pytz==2016.7
-PyYAML==3.12
+PyYAML==3.13
 redis==2.10.5
 requests==2.11.1
 six==1.10.0