diff --git a/serverless.yml b/serverless.yml
index 3ba014b..6bf3675 100644
--- a/serverless.yml
+++ b/serverless.yml
@@ -23,7 +23,7 @@ provider:
     HASH_SECRET: ${env:HASH_SECRET}
     MOMENTO_TOKEN: ${env:MOMENTO_TOKEN}
     LOG_LEVEL: ${env:LOG_LEVEL}
-    VSH_LATEST_CLIENT_VERSION: '3.0.0'
+    VSH_LATEST_CLIENT_VERSION: '4.0.0'
     LOG_INSPECT_DEPTH: 8
 
   iam: