diff --git a/requirements.txt b/requirements.txt
index d01b867..eacf292 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ MarkupSafe==1.1.1
 numpy==1.18.2
 Pillow==7.0.0
 protobuf==3.11.3
-PyYAML==5.3.1
+PyYAML==5.4
 scipy==1.4.1
 six==1.14.0
 tensorboard==1.14.0