diff --git a/src/master/requirements.txt b/src/master/requirements.txt
index 97d82eb..2da23a6 100644
--- a/src/master/requirements.txt
+++ b/src/master/requirements.txt
@@ -21,7 +21,7 @@ pycparser==2.19
 pycrypto==2.6.1
 pytz==2019.3
 pyxdg==0.25
-PyYAML==3.12
+PyYAML==5.1
 requests==2.18.4
 six==1.11.0
 SQLAlchemy==1.1.18