diff --git a/requirements.txt b/requirements.txt
index 384e664..528e2bf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -72,7 +72,7 @@ PySocks==1.6.8
 python-dateutil==2.7.3
 pytz==2018.5
 PyWavelets==1.0.1
-PyYAML==3.13
+PyYAML==5.4
 pyzmq==17.1.2
 qtconsole==4.4.1
 requests==2.19.1