diff --git a/src/application/services/payment_quote_service.py b/src/application/services/payment_quote_service.py
index 2632e47..ff4b1bc 100644
--- a/src/application/services/payment_quote_service.py
+++ b/src/application/services/payment_quote_service.py
@@ -11,7 +11,7 @@ _MIN_USDT_AMOUNT: Decimal = Decimal('1')
 _FEE_TIERS: tuple[tuple[Decimal, Decimal, Decimal, bool, bool], ...] = (
     (Decimal('0.08'), Decimal('0'), Decimal('30000'), True, True),
     (Decimal('0.06'), Decimal('30000'), Decimal('100000'), False, True),
-    (Decimal('0.04'), Decimal('100000'), Decimal('600000'), False, True),
+    (Decimal('0.04'), Decimal('30000'), Decimal('600000'), False, True),
 )