diff --git a/migrations/versions/b0fea72a3f20_update_domain_serial_columns_type.py b/migrations/versions/b0fea72a3f20_update_domain_serial_columns_type.py
new file mode 100644
index 0000000..4aae961
--- /dev/null
+++ b/migrations/versions/b0fea72a3f20_update_domain_serial_columns_type.py
@@ -0,0 +1,35 @@
+"""Update domain serial columns type
+
+Revision ID: b0fea72a3f20
+Revises: 856bb94b7040
+Create Date: 2019-12-20 09:18:51.541569
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = 'b0fea72a3f20'
+down_revision = '856bb94b7040'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    with op.batch_alter_table('domain') as batch_op:
+        batch_op.alter_column('serial',
+                              existing_type=sa.Integer(),
+                              type_=sa.BigInteger())
+        batch_op.alter_column('notified_serial',
+                              existing_type=sa.Integer(),
+                              type_=sa.BigInteger())
+
+
+def downgrade():
+    with op.batch_alter_table('domain') as batch_op:
+        batch_op.alter_column('serial',
+                              existing_type=sa.BigInteger(),
+                              type_=sa.Integer())
+        batch_op.alter_column('notified_serial',
+                              existing_type=sa.BigInteger(),
+                              type_=sa.Integer())
diff --git a/powerdnsadmin/models/domain.py b/powerdnsadmin/models/domain.py
index be966b0..53a122a 100644
--- a/powerdnsadmin/models/domain.py
+++ b/powerdnsadmin/models/domain.py
@@ -20,8 +20,8 @@ class Domain(db.Model):
     name = db.Column(db.String(255), index=True, unique=True)
     master = db.Column(db.String(128))
     type = db.Column(db.String(6), nullable=False)
-    serial = db.Column(db.Integer)
-    notified_serial = db.Column(db.Integer)
+    serial = db.Column(db.BigInteger)
+    notified_serial = db.Column(db.BigInteger)
     last_check = db.Column(db.Integer)
     dnssec = db.Column(db.Integer)
     account_id = db.Column(db.Integer, db.ForeignKey('account.id'))