diff --git a/backend/app/db/models.py b/backend/app/db/models.py
index 8149578..caa54b3 100644
--- a/backend/app/db/models.py
+++ b/backend/app/db/models.py
@@ -234,7 +234,7 @@ class OperationLog(Base):
        userid = mapped_column(Integer,ForeignKey("user.id"))
        operation = mapped_column(String(200))
        function = mapped_column(String(200))
-       parameters = mapped_column(String(200))
+       parameters = mapped_column(String)
        response = mapped_column(String(200))
        user = relationship('User')