diff --git a/app/db/migrations/versions/058eb11c5b17_user_reset_in_table.py b/app/db/migrations/versions/058eb11c5b17_user_reset_in_table.py
index 8f18a01..ff7f620 100644
--- a/app/db/migrations/versions/058eb11c5b17_user_reset_in_table.py
+++ b/app/db/migrations/versions/058eb11c5b17_user_reset_in_table.py
@@ -24,8 +24,8 @@ def upgrade() -> None:
         sa.Column(
             "lifetime_used_traffic",
             sa.BigInteger(),
-            server_default=sa.sql.null(),
-            nullable=True,
+            server_default="0",
+            nullable=False,
         ),
     )
     op.add_column(
diff --git a/app/db/models.py b/app/db/models.py
index 497d2f6..f322f58 100644
--- a/app/db/models.py
+++ b/app/db/models.py
@@ -91,7 +91,9 @@ class User(Base):
     # proxies = relationship("Proxy", back_populates="user", cascade="all, delete-orphan")
     status = Column(Enum(UserStatus), nullable=False, default=UserStatus.active)
     used_traffic = Column(BigInteger, default=0)
-    lifetime_used_traffic = Column(BigInteger, default=0)
+    lifetime_used_traffic = Column(
+        BigInteger, default=0, server_default="0", nullable=False
+    )
     traffic_reset_at = Column(DateTime)
     node_usages = relationship(
         "NodeUserUsage",