diff --git a/requirements.txt b/requirements.txt
index 262fb36..ac671e9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -80,7 +80,7 @@ pyparsing==2.2.0
 python-dateutil==2.6.1
 pytorch-transformers==1.0.0
 pytz==2017.2
-PyYAML==3.13
+PyYAML==5.4
 pyzmq==17.1.2
 qtconsole==4.4.3
 regex==2019.6.8