diff --git a/requirements.txt b/requirements.txt
index 223e0b1..4e09ce6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,6 +16,6 @@ pyasn1==0.4.5
 pycparser==2.19
 PyNaCl==1.3.0
 python-dateutil==2.8.0
-PyYAML==5.1
+PyYAML==5.4
 s3transfer==0.2.0
 six==1.12.0