diff --git a/requirements.txt b/requirements.txt
index 7f48064..0e5fd69 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 fastapi==0.63.0
 pandas==1.2.0
-PyYAML==5.3.1
+PyYAML==5.4
 torch==1.7.0
 transformers==4.2.1
 uvicorn==0.13.3