diff --git a/requirements.txt b/requirements.txt
index 301dbfa..1af9e25 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -85,7 +85,7 @@ python-dateutil==2.7.5
 pytz==2018.7
 pywin32==223
 pywinpty==0.5.4
-PyYAML==3.13
+PyYAML==5.4
 pyzmq==17.1.2
 regex==2018.11.7
 requests==2.20.1