diff --git a/README.md b/README.md
index 1f055fb..19a1896 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ The following example shows the container used for a deployment step which shows
 |-------------|-----------------------------------------------------------------------------------------------|----------------------------------|-----------|-------------------------------------------------------------------------------------------------------------------------------------|
 | latest      | Latest stable release (from `main` branch)                                                    | azure-pipelines-dockercli:27.1.1 | 21.0.4.0  | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-openjdk/latest?style=flat-square)      |
 | 21          | Identical to `latest` tag                                                                     |                                  |           | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-openjdk/21?style=flat-square)          |
-| unstable    | Latest unstable release (from `develop` branch)                                               | azure-pipelines-dockercli:27.4.1 | 21.0.4.0  | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-openjdk/unstable?style=flat-square)    |
+| unstable    | Latest unstable release (from `develop` branch)                                               | azure-pipelines-dockercli:27.4.1 | 21.0.5.0  | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-openjdk/unstable?style=flat-square)    |
 | 21-unstable | Identical to `unstable` tag                                                                   |                                  |           | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-openjdk/21-unstable?style=flat-square) |
 | 21.0.2.0    | Eclipse Temurin 21.0.2                                                                        | azure-pipelines-dockercli:25.0.3 | 21.0.2.0  | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-openjdk/21.0.2.0?style=flat-square)    |
 | 21.0.3.0    | Eclipse Temurin 21.0.3                                                                        | azure-pipelines-dockercli:26.1.1 | 21.0.3.0  | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-openjdk/21.0.3.0?style=flat-square)    |