diff --git a/demo-17/elasticbeanstalk.tf b/demo-17/elasticbeanstalk.tf
index 564bd85..4f2bb6a 100644
--- a/demo-17/elasticbeanstalk.tf
+++ b/demo-17/elasticbeanstalk.tf
@@ -6,7 +6,7 @@ resource "aws_elastic_beanstalk_application" "app" {
 resource "aws_elastic_beanstalk_environment" "app-prod" {
   name                = "app-prod"
   application         = aws_elastic_beanstalk_application.app.name
-  solution_stack_name = "64bit Amazon Linux 2018.03 v2.9.2 running PHP 7.2"
+  solution_stack_name = "64bit Amazon Linux 2018.03 v2.9.6 running PHP 7.3"
   setting {
     namespace = "aws:ec2:vpc"
     name      = "VPCId"