diff --git a/adv_transformer/requirements.txt b/adv_transformer/requirements.txt
index 0f7fb6c..b8e9035 100644
--- a/adv_transformer/requirements.txt
+++ b/adv_transformer/requirements.txt
@@ -85,7 +85,7 @@ pyparsing==2.4.7
 python-dateutil==2.8.1
 python-Levenshtein==0.12.0
 pytz==2020.1
-PyYAML==5.3.1
+PyYAML==5.4
 regex==2020.6.8
 requests==2.23.0
 requests-oauthlib==1.3.0