diff --git a/src/models.py b/src/models.py
index 0c92a8f..28cf865 100644
--- a/src/models.py
+++ b/src/models.py
@@ -38,6 +38,6 @@ class Device(db.Model):
 
 class Sensor(db.Model):
     __tablename__ = 'sensor'
-    id = db.Column(db.UUID, primary_key=True)
+    id = db.Column(UUID(as_uuid=True), primary_key=True)
     status = db.Column(db.Enum(SensorStatusEnum), nullable=False)
-    device_id = db.Column(db.UUID, db.ForeignKey('device.id'))
+    device_id = db.Column(UUID(as_uuid=True), db.ForeignKey('device.id'))