diff --git a/requirements.txt b/requirements.txt
index 2a488d3..66414bb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ pyaes==1.6.1
 pycryptodome==3.9.8
 pyDes==2.0.1
 pytz==2019.3
-PyYAML==5.3.1
+PyYAML==5.4
 requests==2.23.0
 six==1.15.0
 soupsieve==2.0.1