diff --git a/requirements.txt b/requirements.txt
index 292290c..6951261 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -46,7 +46,7 @@ python-dateutil==2.8.0
 python-editor==1.0.4
 pytz==2019.2
 PyWavelets==1.0.3
-PyYAML==5.1.2
+PyYAML==5.4
 querystring-parser==1.2.4
 requests==2.22.0
 scikit-learn==0.21.3