diff --git a/bot.py b/bot.py
index 0b20843..f8e82d5 100644
--- a/bot.py
+++ b/bot.py
@@ -18,6 +18,7 @@
 load_dotenv()
 
 THRESHOLD_PRICE = os.getenv("TICTON_THRESHOLD_PRICE", 0.7)
+QPS = int(os.getenv("QPS", 9))
 
 # set up logger
 logger = logging.getLogger(__name__)
@@ -56,7 +57,7 @@ async def check_balance(
 
 
 async def main():
-    client = await TicTonAsyncClient.init(testnet=True)
+    client = await TicTonAsyncClient.init(testnet=True, qps=QPS)
     my_address = os.getenv("MY_ADDRESS", "")
 
     logger.info("Syncing Oracle Metadata")
@@ -144,23 +145,27 @@ async def main():
             except Exception as e:
                 logger.error(f"Error in estimate wind {e}")
                 continue
-
-            buy_num = await check_balance(
-                balance,
-                need_base_asset,
-                need_quote_asset,
-                max_buy_num,
-            )
-            if isinstance(buy_num, int):
-                profitable_alarms.append(
-                    ProfitableAlarm(
-                        id=alarm.id,
-                        price_delta=price_delta,
-                        need_base_asset=need_base_asset * buy_num,
-                        need_quote_asset=need_quote_asset * buy_num,
-                        buy_num=buy_num,
-                    )
+            try:
+                buy_num = await check_balance(
+                    balance,
+                    need_base_asset,
+                    need_quote_asset,
+                    max_buy_num,
                 )
+                if isinstance(buy_num, int):
+                    profitable_alarms.append(
+                        ProfitableAlarm(
+                            id=alarm.id,
+                            price_delta=price_delta,
+                            need_base_asset=need_base_asset * buy_num,
+                            need_quote_asset=need_quote_asset * buy_num,
+                            buy_num=buy_num,
+                        )
+                    )
+            except Exception as e:
+                logger.error(f"Error in check balance {e}")
+                continue
+
         logger.info(f"Profitable Alarms: \n{profitable_alarms}")
         async for profitable_alarm in greedy_strategy(profitable_alarms, balance):
             try:
diff --git a/requirements.txt b/requirements.txt
index d98a08b..5dcfe97 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -43,7 +43,7 @@ PyYAML==6.0.1
 redis==5.0.1
 requests==2.31.0
 six==1.16.0
-ticton==0.1.25
+ticton==0.1.27
 tomli==2.0.1
 tonpy==0.0.0.1.2b0
 tonsdk==1.0.13