diff --git a/requirements.txt b/requirements.txt
index 96790a1..6662666 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -96,7 +96,7 @@ pysbd==0.2.3
 PySocks==1.7.1
 python-dateutil==2.8.0
 pytz==2019.3
-PyYAML==5.1.2
+PyYAML==5.4
 pyzmq==18.1.0
 qtconsole==4.5.5
 requests==2.22.0