diff --git a/requirements.txt b/requirements.txt
index fb9fcd4..49c80f8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ numpy==1.16.3
 Pillow==6.2.0
 pyparsing==2.4.0
 python-dateutil==2.8.0
-PyYAML==5.1
+PyYAML==5.4
 randomcolor==0.4.4.5
 scikit-learn==0.20.3
 scipy==1.2.1