diff --git a/requirements.txt b/requirements.txt
index 85b7ed4..2c07f15 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ Pillow==5.2.0
 protobuf==3.7.1
 python-dateutil==2.8.0
 pytz==2019.1
-PyYAML==3.12
+PyYAML==5.4
 scipy==1.1.0
 six==1.11.0
 tensorboard==1.13.1