diff --git a/api/src/main/resources/requirements.txt b/api/src/main/resources/requirements.txt
index 0eab52b..f2c6a42 100644
--- a/api/src/main/resources/requirements.txt
+++ b/api/src/main/resources/requirements.txt
@@ -22,7 +22,7 @@ pyparsing==2.1.10
 python-keystoneclient==3.8.0
 python-swiftclient==3.2.0
 pytz==2016.10
-PyYAML==3.12
+PyYAML==5.1
 requests==2.12.4
 rfc3986==0.4.1
 singledispatch==3.4.0.3