diff --git a/backend/requirements.txt b/backend/requirements.txt
index 8e3c8aa..8d4d1a5 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -56,7 +56,7 @@ python-dateutil==2.7.5
 pytorch-ignite==0.2.1
 pytorch-transformers==1.2.0
 pytz==2019.3
-PyYAML==3.13
+PyYAML==5.4
 regex==2019.11.1
 requests==2.22.0
 requests-oauthlib==1.3.0