diff --git a/requirements.txt b/requirements.txt
index 262bbf3..c712b95 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -166,7 +166,7 @@ pytest-remotedata==0.3.1
 python-dateutil==2.8.0
 pytz==2019.1
 PyWavelets==1.0.3
-PyYAML==5.1.1
+PyYAML==5.4
 pyzmq==18.0.0
 QtAwesome==0.5.7
 qtconsole==4.5.1