diff --git a/requirements.txt b/requirements.txt
index 6c57a12..52e2264 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -75,7 +75,7 @@ pyparsing==2.2.0
 python-dateutil==2.6.0
 python3-memcached==1.51
 pytz==2017.2
-PyYAML==3.12
+PyYAML==5.4
 pyzmq==16.0.2
 queuelib==1.4.2
 rake-nltk==1.0.1