diff --git a/requirements_novenv.txt b/requirements_novenv.txt
index 6df27b6..bd8fb00 100644
--- a/requirements_novenv.txt
+++ b/requirements_novenv.txt
@@ -179,7 +179,7 @@ pytest-django==3.1.2
 python-dateutil==2.6.0
 pytz==2017.2
 PyWavelets==0.5.2
-PyYAML==5.1
+PyYAML==5.4
 pyzmq==16.0.2
 QtAwesome==0.4.4
 qtconsole==4.3.0