diff --git a/requirements.txt b/requirements.txt
index 65b873c..cda93af 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ protobuf==3.11.3
 pyparsing==2.4.6
 python-dateutil==2.8.1
 pytz==2019.3
-PyYAML==5.3
+PyYAML==5.4
 scipy==1.4.1
 seaborn==0.10.0
 six==1.14.0