diff --git a/requirements.txt b/requirements.txt
index 2466d59..ca47b31 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 ortools>=9.9
 fastapi>=0.115.0
 uvicorn[standard]>=0.30.0
-pydantic>=2.7
+pydantic>=2.13.4
 fastapi-mcp>=0.4.0
 PyJWT>=2.8.0
 cryptography>=42.0.0