diff --git a/Python/requirements.txt b/Python/requirements.txt
index fd394c6..0f6cd0e 100644
--- a/Python/requirements.txt
+++ b/Python/requirements.txt
@@ -28,7 +28,7 @@ pytest==3.0.5
 python-dateutil==2.6.0
 python-utils==2.0.0
 pytz==2016.7
-PyYAML==3.12
+PyYAML==5.4
 recommonmark==0.4.0
 requests==2.12.4
 rsa==3.4.2