diff --git a/requirements.txt b/requirements.txt
index 7a533ec..30f587b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ multidict==2.1.4
 progressbar2==3.30.2
 PyJWT==1.5.0
 python-utils==2.1.0
-PyYAML==3.12
+PyYAML==5.1
 requests==2.13.0
 six==1.10.0
 tornado==4.4.3