diff --git a/bitnami/alertmanager/0/debian-9/Dockerfile b/bitnami/alertmanager/0/debian-9/Dockerfile
index 9e212fd2f40f..f722e0e08177 100644
--- a/bitnami/alertmanager/0/debian-9/Dockerfile
+++ b/bitnami/alertmanager/0/debian-9/Dockerfile
@@ -12,7 +12,7 @@ RUN ln -sf /opt/bitnami/alertmanager/data /alertmanager
 
 RUN mkdir -p /opt/bitnami/alertmanager/data/ && chmod g+rwX /opt/bitnami/alertmanager/data/
 ENV BITNAMI_APP_NAME="alertmanager" \
-    BITNAMI_IMAGE_VERSION="0.19.0-debian-9-r53" \
+    BITNAMI_IMAGE_VERSION="0.19.0-debian-9-r54" \
     PATH="/opt/bitnami/alertmanager/bin:$PATH"
 
 EXPOSE 9093
diff --git a/bitnami/alertmanager/README.md b/bitnami/alertmanager/README.md
index 90cff98db4d1..446b21dce625 100644
--- a/bitnami/alertmanager/README.md
+++ b/bitnami/alertmanager/README.md
@@ -47,7 +47,7 @@ Learn more about the Bitnami tagging policy and the difference between rolling t
 
 
 * [`0-ol-7`, `0.19.0-ol-7-r64` (0/ol-7/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.19.0-ol-7-r64/0/ol-7/Dockerfile)
-* [`0-debian-9`, `0.19.0-debian-9-r53`, `0`, `0.19.0`, `0.19.0-r53`, `latest` (0/debian-9/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.19.0-debian-9-r53/0/debian-9/Dockerfile)
+* [`0-debian-9`, `0.19.0-debian-9-r54`, `0`, `0.19.0`, `0.19.0-r54`, `latest` (0/debian-9/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.19.0-debian-9-r54/0/debian-9/Dockerfile)
 
 Subscribe to project updates by watching the [bitnami/alertmanager GitHub repo](https://github.com/bitnami/bitnami-docker-alertmanager).
 
@@ -83,6 +83,8 @@ To avoid inadvertent removal of this volume you can [mount host directories as d
 $ docker run -v /path/to/alertmanager-persistence:/opt/bitnami/data bitnami/alertmanager:latest
 ```
 
+> NOTE: As this is a non-root container, the mounted files and directories must have the proper permissions for the UID `1001`.
+
 # Connecting to other containers
 
 Using [Docker container networking](https://docs.docker.com/engine/userguide/networking/), a different server running inside a container can easily be accessed by your application containers and vice-versa.