diff --git a/requirements.txt b/requirements.txt
index af2b096..bf3ce12 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ PyJWT==1.7.1
 pyparsing==2.4.7
 python-dateutil==2.8.1
 pytz==2019.3
-PyYAML==5.3.1
+PyYAML==5.4
 requests==2.23.0
 rsa==3.4.2
 ruamel.yaml==0.16.10