diff --git a/requirements.txt b/requirements.txt
index 6c501e8..f746e8a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -80,7 +80,7 @@ python-dateutil==2.8.1
 pytorch-lamb==1.0.0
 pytorch-pretrained-bert==0.6.2
 pytz==2019.3
-PyYAML==5.1.2
+PyYAML==5.4
 pyzmq==18.1.0
 qtconsole==4.5.5
 regex==2019.11.1