# Manual upgrade of a non-BYOL EC2 AMI
**URL:** https://community.wowza.com/t/manual-upgrade-of-a-non-byol-ec2-ami/45612
**Category:** Wowza Streaming Engine
**Created:** [October 9, 2015, 4:49pm UTC](https://community.wowza.com/t/manual-upgrade-of-a-non-byol-ec2-ami/45612 "2015-10-09T16:49:11Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@User1](https://community.wowza.com/u/User1)
#### Post date: [October 9, 2015, 4:49pm UTC](https://community.wowza.com/t/manual-upgrade-of-a-non-byol-ec2-ami/45612/1 "2015-10-09T16:49:11Z")
I am using the “Wowza Streaming Engine 4: Pro Edition” subscription from Amazon Marketplace. This provides AMIs with an embedded (non-BYOL) license.
[https://aws.amazon.com/marketplace/pp/B012BW3WB8](https://aws.amazon.com/marketplace/pp/B012BW3WB8)
There is a new release 4.3, but unfortunately the AMIs for this release are not yet available. Can I upgrade my host manually using the instructions here:
[https://www.wowza.com/docs/how-to-upgrade-wowza-media-server-software-to-wowza-streaming-engine](https://www.wowza.com/docs/how-to-upgrade-wowza-media-server-software-to-wowza-streaming-engine)?
More specifically, I am asking if the embedded license provided through the AWS Marketplace subscription allows for manual upgrades of the Wowza software.
Thanks.
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### Author:  [@Andrew\_Ramberg](https://community.wowza.com/u/Andrew_Ramberg)
#### Post date: [October 12, 2015, 9:10am UTC](https://community.wowza.com/t/manual-upgrade-of-a-non-byol-ec2-ami/45612/2 "2015-10-12T09:10:04Z")
Hello,
Yes, you can upgrade your AMI manually to 4.3. The license determines how the billing component is handled and should work fine with the upgraded version.
Best regards,
Andrew