diff --git a/pybtc/connector.py b/pybtc/connector.py
index 00fe189..6c501a0 100644
--- a/pybtc/connector.py
+++ b/pybtc/connector.py
@@ -783,7 +783,7 @@ class UTXO():
     async def save_utxo(self, block_height):
         # save to db tail from cache
         self.save_process = True
-        self.log.critical(str(block_height))
+        await asyncio.sleep(2)
         c = len(self.cached) - self._cache_size
         try:
             lb = 0