diff --git a/requirements.txt b/requirements.txt
index 9e90d54..3b00d79 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -75,7 +75,7 @@ python-dateutil==2.6.1
 python-utils==2.2.0
 pytz==2017.2
 PyWavelets==0.5.2
-PyYAML==3.12
+PyYAML==5.4
 pyzmq==16.0.2
 qtconsole==4.3.1
 requests==2.18.4