diff --git a/requirements.txt b/requirements.txt
index 7fc6fba..1f68d74 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -77,7 +77,7 @@ pytest-asyncio==0.14.0
 pytest-cov==2.10.1
 pytoml==0.1.21
 pytz==2020.1
-PyYAML==5.1.2
+PyYAML==5.4
 rapidjson==1.0.0
 requests==2.24.0
 retrying==1.3.3