diff --git a/requirements.txt b/requirements.txt
index d0daef9..231c4ea 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ pyparsing==2.4.2
 python-engineio==3.9.3
 python-socketio==4.3.1
 python-utils==2.3.0
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.22.0
 scipy==1.3.1
 six==1.12.0