diff --git a/data/refdata/instruments.cfg b/data/refdata/instruments.cfg
index d6b473e..a4f4220 100644
--- a/data/refdata/instruments.cfg
+++ b/data/refdata/instruments.cfg
@@ -223,13 +223,13 @@
     , "PAIR-SUI-USD": {
         "base_asset": "SUI",
         "quote_asset": "USD",
-        "quantity_precision": "1",
+        "quantity_precision": "0.1",
         "price_tick": 0.0001
     }
     , "PAIR-SUI-USDT": {
         "base_asset": "SUI",
         "quote_asset": "USDT",
-        "quantity_precision": "1",
+        "quantity_precision": "0.1",
         "price_tick": 0.0001
     }
     # --- PAIR-U