diff --git a/README.md b/README.md
index 25b922b..0d4d1cf 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,7 @@ Exchange original API docs: [https://exchange-docs.crypto.com](https://exchange-
 
 ### Changelog
 
+- **0.5.1** - added symbols YFI, BAND, fixed test with limit orders
 - **0.5** - missing symbols MKR, UNI, possible refactoring for simple objects
 - **0.4.5** - fixed missing CELR balances
 - **0.4.4** - fixed missing QTUM, CELR coins
diff --git a/src/cryptocom/exchange/__init__.py b/src/cryptocom/exchange/__init__.py
index 2950d92..3725db4 100644
--- a/src/cryptocom/exchange/__init__.py
+++ b/src/cryptocom/exchange/__init__.py
@@ -13,4 +13,4 @@ __all__ = [
     'ApiError', 'ApiProvider'
 ]
 
-__version__ = '0.5'
+__version__ = '0.5.1'
diff --git a/src/cryptocom/exchange/structs.py b/src/cryptocom/exchange/structs.py
index c822717..af933d9 100644
--- a/src/cryptocom/exchange/structs.py
+++ b/src/cryptocom/exchange/structs.py
@@ -36,6 +36,8 @@ class Coin(str, enum.Enum):
     CELR = 'CELR'
     MKR = 'MKR'
     UNI = 'UNI'
+    YFI = 'YFI'
+    BAND = 'BAND'
 
     ETC = 'ETC'
 
@@ -95,6 +97,8 @@ class Pair(str, enum.Enum):
     CELR_USDT = 'CELR_USDT'
     MKR_USDT = 'MKR_USDT'
     UNI_USDT = 'UNI_USDT'
+    YFI_USDT = 'YFI_USDT'
+    BAND_USDT = 'BAND_USDT'
 
     MCO_CRO = 'MCO_CRO'
     ETH_CRO = 'ETH_CRO'
@@ -123,6 +127,8 @@ class Pair(str, enum.Enum):
     CELR_CRO = 'CELR_CRO'
     MKR_CRO = 'MKR_CRO'
     UNI_CRO = 'UNI_CRO'
+    YFI_CRO = 'YFI_CRO'
+    BAND_CRO = 'BAND_CRO'
 
     CRO_USDC = 'CRO_USDC'
 
diff --git a/tests/test_private.py b/tests/test_private.py
index 8b63646..781d43b 100644
--- a/tests/test_private.py
+++ b/tests/test_private.py
@@ -33,10 +33,11 @@ async def test_no_dublicated_mass_limit_orders(
     for order in real_orders:
         assert order.status == cro.OrderStatus.ACTIVE, order
 
-    assert len(real_orders) == 100
-
-    orders = await account.get_open_orders(cro.Pair.CRO_USDT)
-    assert sorted(o.id for o in orders) == sorted(order_ids)
+    # wait till open orders will be updated
+    await asyncio.sleep(1)
+    open_orders = await account.get_open_orders(cro.Pair.CRO_USDT)
+    assert len(real_orders) == len(open_orders) == 100
+    assert sorted(o.id for o in open_orders) == sorted(order_ids)
 
 
 @pytest.mark.asyncio