diff --git a/requirements.txt b/requirements.txt
index a3975a2..1e1c7cf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ pygdbmi==0.9.0.2
 pyparsing==2.4.2
 python-dateutil==2.8.0
 pytz==2019.2
-PyYAML==5.1.2
+PyYAML==5.4
 redis==3.3.8
 scikit-learn==0.21.3
 scipy==1.3.1