diff --git a/requirements.txt b/requirements.txt
index 4abdbcb..c957f6d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -100,7 +100,7 @@ pytest==2.8.1
 python-dateutil==2.4.2
 pytz==2015.6
 pywin32==219
-PyYAML==3.11
+PyYAML==5.4
 pyzmq==14.7.0
 qtconsole==4.1.0
 requests==2.8.1