diff --git a/requirements.txt b/requirements.txt
index d9380f6..6c4134f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ pyparsing==2.4.0
 python-dateutil==2.8.0
 python-dotenv==0.10.3
 pytz==2019.1
-PyYAML==5.1.1
+PyYAML==5.4
 scipy==1.1.0
 six==1.12.0
 tensorboard==1.13.1