diff --git a/stack.yml b/stack.yml
index 92b1a26..b0be27d 100644
--- a/stack.yml
+++ b/stack.yml
@@ -54,7 +54,7 @@ Resources:
       Handler: index.handler
       Timeout: 5
       CodeUri: ./index.js
-      Runtime: nodejs6.10
+      Runtime: nodejs8.10
       Events:
         PostEvent:
           Type: Api