diff --git a/aws_lambda_builders/__init__.py b/aws_lambda_builders/__init__.py
index a0adf692b..0b9662f4c 100644
--- a/aws_lambda_builders/__init__.py
+++ b/aws_lambda_builders/__init__.py
@@ -1,5 +1,5 @@
 """
 AWS Lambda Builder Library
 """
-__version__ = '0.4.0'
+__version__ = '0.5.0'
 RPC_PROTOCOL_VERSION = "0.3"