diff --git a/requirements.txt b/requirements.txt
index f50fc69..13d23b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 fastapi==0.103.1
 loguru==0.7.2
-pydantic==1.10.12
+pydantic==2.4.1
 python-dotenv==0.21.1
 requests==2.31.0
 slack-bolt==1.18.0