diff --git a/README.md b/README.md
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 # Self-Hosted Sentry nightly
 
 Official bootstrap for running your own [Sentry](https://sentry.io/) with [Docker](https://www.docker.com/).
 
 ## Requirements
 
 * Docker 19.03.6+
 * Compose 1.28.0+
 * 4 CPU Cores
 * 8 GB RAM
 * 20 GB Free Disk Space
 
 ## Setup
 
 To get started with all the defaults, simply clone the repo and run `./install.sh` in your local check-out. Sentry uses Python 3 by default since December 4th, 2020 and Sentry 21.1.0 is the last version to support Python 2.
 
 During the install, a prompt will ask if you want to create a user account. If you require that the install not be blocked by the prompt, run `./install.sh --no-user-prompt`.
 
 Please visit [our documentation](https://develop.sentry.dev/self-hosted/) for everything else.
 
 ## Tips & Tricks
 
 ### Event Retention
 
 Sentry comes with a cleanup cron job that prunes events older than `90 days` by default. If you want to change that, you can change the `SENTRY_EVENT_RETENTION_DAYS` environment variable in `.env` or simply override it in your environment. If you do not want the cleanup cron, you can remove the `sentry-cleanup` service from the `docker-compose.yml`file.
 
 ### Installing a specific SHA
 
 If you want to install a specific release of Sentry, use the tags/releases on this repo.
 
 We continously push the Docker image for each commit made into [Sentry](https://github.com/getsentry/sentry), and other services such as [Snuba](https://github.com/getsentry/snuba) or [Symbolicator](https://github.com/getsentry/symbolicator) to [our Docker Hub](https://hub.docker.com/u/getsentry) and tag the latest version on master as `:nightly`. This is also usually what we have on sentry.io and what the install script uses. You can use a custom Sentry image, such as a modified version that you have built on your own, or simply a specific commit hash by setting the `SENTRY_IMAGE` environment variable to that image name before running `./install.sh`:
 
 ```shell
 SENTRY_IMAGE=getsentry/sentry:83b1380 ./install.sh
 ```
 
 Note that this may not work for all commit SHAs as this repository evolves with Sentry and its satellite projects. It is highly recommended to check out a version of this repository that is close to the timestamp of the Sentry commit you are installing.
 
 ### Using Linux
 
-If you are using Linux and you need to use `sudo` when running `./install.sh`, modifying the version of Sentry is slightly different. First, run the following:
+If you are using Linux and you need to use `sudo` when running `./install.sh`, make sure to place the environment variable *after* `sudo`:
 
 ```shell
-sudo visudo
-```
-
-Then add the following line:
-
-```shell
-Defaults  env_keep += "SENTRY_IMAGE"
-```
-
-Save the file then in your terminal run the following
-
-```shell
-export SENTRY_IMAGE=us.gcr.io/sentryio/sentry:83b1380
-sudo ./install.sh
+sudo SENTRY_IMAGE=us.gcr.io/sentryio/sentry:83b1380 ./install.sh
 ```
 
 Where you replace `83b1380` with the sha you want to use.
 
 [build-status-image]: https://github.com/getsentry/onpremise/workflows/test/badge.svg
 [build-status-url]: https://git.io/JUYkh