diff --git a/data/refdata/instruments.cfg b/data/refdata/instruments.cfg
index 6469f6d..d6b473e 100644
--- a/data/refdata/instruments.cfg
+++ b/data/refdata/instruments.cfg
@@ -91,13 +91,13 @@
     , "PAIR-DOT-USD": {
         "base_asset": "DOT",
         "quote_asset": "USD",
-        "quantity_precision": "0.01",
+        "quantity_precision": "0.00000001",
         "price_tick": 0.001
     }
     , "PAIR-DOT-USDT": {
         "base_asset": "DOT",
         "quote_asset": "USDT",
-        "quantity_precision": "0.01",
+        "quantity_precision": "0.00000001",
         "price_tick": 0.001
     }
     # --- PAIR-E