diff --git a/requirements.txt b/requirements.txt
index 4d63a57..0449d52 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -66,7 +66,7 @@ pyrsistent==0.16.0
 PySocks==1.7.1
 python-dateutil==2.8.1
 pytz==2019.3
-PyYAML==5.3.1
+PyYAML==5.4
 pyzmq==19.0.0
 qtconsole==4.7.2
 QtPy==1.9.0