diff --git a/data/refdata/instruments.cfg b/data/refdata/instruments.cfg
index 2b73768..86e0f2f 100644
--- a/data/refdata/instruments.cfg
+++ b/data/refdata/instruments.cfg
@@ -42,13 +42,13 @@
     , "PAIR-BCH-USD": {
         "base_asset": "BCH",
         "quote_asset": "USD",
-        "quantity_precision": "0.001",
+        "quantity_precision": "0.00000001",
         "price_tick": 0.1
     }
     , "PAIR-BCH-USDT": {
         "base_asset": "BCH",
         "quote_asset": "USDT",
-        "quantity_precision": "0.001",
+        "quantity_precision": "0.00000001",
         "price_tick": 0.1
     }
     , "PAIR-BNB-USD": {