diff --git a/api/models.py b/api/models.py
index bcf9fb4c..21766374 100644
--- a/api/models.py
+++ b/api/models.py
@@ -132,7 +132,7 @@ class Order(models.Model):
     # order details
     type = models.PositiveSmallIntegerField(choices=Types.choices, null=False)
     currency = models.ForeignKey(Currency, null=True, on_delete=models.SET_NULL)
-    amount = models.DecimalField(max_digits=9, decimal_places=4, validators=[MinValueValidator(0.00001)])
+    amount = models.DecimalField(max_digits=16, decimal_places=8, validators=[MinValueValidator(0.00000001)])
     payment_method = models.CharField(max_length=35, null=False, default="not specified", blank=True)
 
     # order pricing method. A explicit amount of sats, or a relative premium above/below market.