diff --git a/requirements.txt b/requirements.txt
index cc0fc7d..d62015d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ numpy==1.16.3
 pbr==5.1.3
 protobuf==3.7.1
 pymagnitude==0.1.120
-PyYAML==5.1
+PyYAML==5.4
 scipy==1.2.1
 six==1.12.0
 tensorboard==1.13.1