diff --git a/cli/requirements.txt b/cli/requirements.txt
index b4336fa..9e1caef 100644
--- a/cli/requirements.txt
+++ b/cli/requirements.txt
@@ -90,7 +90,7 @@ pyrsistent==0.15.1
 python-dateutil==2.8.0
 pytz==2019.1
 PyWavelets==1.0.3
-PyYAML==3.13
+PyYAML==5.4
 pyzmq==18.0.1
 qtconsole==4.4.3
 requests==2.21.0