diff --git a/requirements.txt b/requirements.txt
index 33448b4..7d7dce9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,5 +5,5 @@ uvicorn
 aiofiles
 fastapi
 elasticsearch==7.7.1
-pyyaml==3.13 
+pyyaml==5.4 
 spacy
\ No newline at end of file