diff --git a/README.md b/README.md
index 487eb40..c875a09 100644
--- a/README.md
+++ b/README.md
@@ -49,6 +49,8 @@ Usually you generate the `testConfig.json` using the Terraform module [terraform
 
 You can also select a specific test-setup in code. For that simply replace `new ExasolTestSetupFactory().getTestSetup()` by `new ExasolTestcontainerTestSetup()`.
 
+To change the Exasol Docker DB version being used you can define the `com.exasol.dockerdb.image` system property,  e.g: `mvn verify -Dcom.exasol.dockerdb.image=${{ matrix.docker_db_version }}`.
+
 ## Information for Users of This Library
 
 * [Guide for Setting up a Project With Cloud Resources](doc/user_guide/setup_project_with_cloud_resources.md)