diff --git a/bitnami/alertmanager/0/debian-9/Dockerfile b/bitnami/alertmanager/0/debian-9/Dockerfile
index d89f9d89579a..bee2f7ea72e2 100644
--- a/bitnami/alertmanager/0/debian-9/Dockerfile
+++ b/bitnami/alertmanager/0/debian-9/Dockerfile
@@ -10,7 +10,7 @@ RUN wget -nc -P /tmp/bitnami/pkg/cache/ https://downloads.bitnami.com/files/stac
 
 RUN mkdir -p /opt/bitnami/alertmanager/data/ && chmod g+rwX /opt/bitnami/alertmanager/data/
 ENV BITNAMI_APP_NAME="alertmanager" \
-    BITNAMI_IMAGE_VERSION="0.18.0-debian-9-r0" \
+    BITNAMI_IMAGE_VERSION="0.18.0-debian-9-r1" \
     PATH="/opt/bitnami/alertmanager/bin:$PATH"
 
 EXPOSE 9093
diff --git a/bitnami/alertmanager/README.md b/bitnami/alertmanager/README.md
index 425b6710074c..1cdf4b73565d 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`, `0.18.0-ol-7-r1` (0/ol-7/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.18.0-ol-7-r1/0/ol-7/Dockerfile)
-* [`0-debian-9`, `0.18.0-debian-9-r0`, `0`, `0.18.0`, `0.18.0-r0`, `latest` (0/debian-9/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.18.0-debian-9-r0/0/debian-9/Dockerfile)
+* [`0-debian-9`, `0.18.0-debian-9-r1`, `0`, `0.18.0`, `0.18.0-r1`, `latest` (0/debian-9/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.18.0-debian-9-r1/0/debian-9/Dockerfile)
 * [`0-rhel-7`, `0.16.2-rhel-7-r11` (0/rhel-7/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.16.2-rhel-7-r11/0/rhel-7/Dockerfile)
 
 Subscribe to project updates by watching the [bitnami/alertmanager GitHub repo](https://github.com/bitnami/bitnami-docker-alertmanager).