diff --git a/requirements.txt b/requirements.txt
index 7a55b9e..4271a90 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ jsonschema==3.2.0
 Keras-Applications==1.0.8
 Keras-Preprocessing==1.1.0
 oauthlib==3.1.0
-PyYAML==5.3.1
+PyYAML==5.4
 scikit-learn==0.22.1
 tensorboard==2.2.1
 tensorboard-plugin-wit==1.6.0.post3