diff --git a/INSTALL.md b/INSTALL.md
index d6b5b394..d8ff675c 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -54,14 +54,22 @@ The Helm Chart can be configured using the following parameters (incomplete list
| `registry.externalSubjectIdWildcardAllowedTypes` | List of allowed types that can be made visible to everyone. | `manufacturerPartId,assetLifecyclePhase` |
### PostgreSQL
-| Parameter | Description | Default value |
-| --- | --- | --- |
-| `postgresql.primary.persistence.size` | Size of the `PersistentVolume` that persists the data | `50Gi` |
-| `postgresql.auth.username` | Username that is used to authenticate at the database | `catenax` |
-| `postgresql.auth.password` | Password for authentication at the database | `TFLIykCd4rUvSjbs` |
-| `postgresql.auth.database` | Database name | `registry` |
+| Parameter | Description | Default value |
+| --- |-------------------------------------------------------------------------------------------------------------------------------|--------------------|
+| `postgresql.primary.persistence.size` | Size of the `PersistentVolume` that persists the data | `50Gi` |
+| `postgresql.auth.username` | Username that is used to authenticate at the database | `default-user` |
+| `postgresql.auth.password` | Password for authentication at the database. If password is empty, the postgres pw will be generated random via postgres-init | `` |
+| `postgresql.auth.database` | Database name | `default-database` |
### Prerequisites
- Kubernetes 1.19+
- Helm 3.2.0+
- PV provisioner support in the underlying infrastructure
+
+### Required postgresql extensions
+The application requires the following postgresql-extensions to be installed in the postgres database:
+
+| PostgreSQL Extension | Description |
+|----------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| uuid-ossp | Via Liquibase scripts, the uuid-ossp extension will be created if it does not exist. See [liquibase-script](https://github.com/eclipse-tractusx/sldt-digital-twin-registry/blob/main/backend/src/main/resources/db/changelog/db.changelog-extensions.yaml).
In case of using Azure Database for PostgreSQL, the extension needs to be manually activated.
More details can be found at [PostgreSQL extensions in Azure Database for PostgreSQL - Flexible Server](https://learn.microsoft.com/en-us/azure/postgresql/flexible-server/concepts-extensions) |
+