diff --git a/src/handler.ts b/src/handler.ts
index ed68dee..10596ff 100644
--- a/src/handler.ts
+++ b/src/handler.ts
@@ -11,7 +11,7 @@ const handler = async (
   _context: Context,
   _callback: Callback,
 ) => {
-  let { NODE_ENV, SERVICE, AWS_REGION, AWS_STAGE, SEND_TO_SMC } = process.env;
+  const { NODE_ENV, SERVICE, AWS_REGION, AWS_STAGE, SEND_TO_SMC } = process.env;
 
   logger.debug(
     `\nRunning Service:\n '${SERVICE}'\n mode: ${NODE_ENV}\n stage: '${AWS_STAGE}'\n region: '${AWS_REGION}'\n