diff --git a/data/refdata/instruments.cfg b/data/refdata/instruments.cfg
index ebbdcb2..ae579f8 100644
--- a/data/refdata/instruments.cfg
+++ b/data/refdata/instruments.cfg
@@ -313,7 +313,7 @@
     "PERP-ADA-USDC": {
         "base_asset": "ADA",
         "quote_asset": "USDC",
-        "quantity_precision": "0.001",
+        "quantity_precision": "1",
         "price_tick": 0.0001
     },
     "PERP-AAVE-USDT": {