diff --git a/requirements.txt b/requirements.txt
index a36279b..1ffd6d1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ pycrypto==2.6.1
 pyparsing==2.2.0
 python-dateutil==2.6.1
 pytz==2017.2
-PyYAML==3.12
+PyYAML==5.4
 requests==2.9.1
 semantic-version==2.5.0
 six==1.10.0