diff --git a/CloudFormation/CustomResources/cognitoTriggerBuild/index.js b/CloudFormation/CustomResources/cognitoTriggerBuild/index.js
index 0e2ec02..5bddc98 100644
--- a/CloudFormation/CustomResources/cognitoTriggerBuild/index.js
+++ b/CloudFormation/CustomResources/cognitoTriggerBuild/index.js
@@ -33,7 +33,7 @@ exports.handler = function(event, context, callback) {
       FunctionName: stackName + '-CognitoLambdaTrigger' + '-' + region,
       Handler: 'index.handler',
       Role: iamRole,
-      Runtime: 'nodejs4.3',
+      Runtime: 'nodejs8.10',
       Timeout: '120'
     };
     lambda.createFunction(params, function(err, data) {