diff --git a/awslambdaric/bootstrap.py b/awslambdaric/bootstrap.py
index f54ca1a..097f71f 100644
--- a/awslambdaric/bootstrap.py
+++ b/awslambdaric/bootstrap.py
@@ -11,7 +11,6 @@
 import traceback
 
 from .lambda_context import LambdaContext
-from .lambda_runtime_client import LambdaRuntimeClient
 from .lambda_runtime_exception import FaultException
 from .lambda_runtime_log_utils import (
     _DATETIME_FORMAT,