diff --git a/readme.md b/readme.md
index 360aa89..c09f72f 100644
--- a/readme.md
+++ b/readme.md
@@ -1,4 +1,4 @@
-# Docker - GitBucket
+# Docker - GitBucket for ARM64
A simple docker-compose file that can be used to create a *GitBucket* container on SBCs.
## Requirements
@@ -9,6 +9,9 @@ __RAM:__ At least 256 MiB
This container is not intended to be used with an external database and forces *GitBucket* to use a local DB.
However, it should be relatively easy to use an external one if you change the `DATABASE_URL` environment variable.
+This container uses the Temurin OpenJDK distribution from [Adoptium](https://adoptium.net/).
+However, the `openjdk-11-jre-headless` and `openjdk-11-jdk-headless` packages from [bitnami/minideb](https://github.com/bitnami/minideb) can be used instead if you wish to.
+
## Building
In order to build this container, all you have to do is to clone this repository and run `docker-compose up`.