diff --git a/bitnami/alertmanager/0/debian-9/Dockerfile b/bitnami/alertmanager/0/debian-9/Dockerfile
index 7f8f3012488a..36dfed002b7b 100644
--- a/bitnami/alertmanager/0/debian-9/Dockerfile
+++ b/bitnami/alertmanager/0/debian-9/Dockerfile
@@ -13,7 +13,7 @@ LABEL maintainer "Bitnami <containers@bitnami.com>"
 
 COPY --from=buildenv /opt/bitnami/alertmanager /opt/bitnami/alertmanager
 ENV BITNAMI_APP_NAME="alertmanager" \
-    BITNAMI_IMAGE_VERSION="0.15.0-debian-9-r11" \
+    BITNAMI_IMAGE_VERSION="0.15.0-debian-9-r12" \
     PATH="/opt/bitnami/alertmanager/bin:$PATH"
 
 RUN mkdir -p /opt/bitnami/alertmanager/data/ && chmod g+rwX /opt/bitnami/alertmanager/data/
diff --git a/bitnami/alertmanager/README.md b/bitnami/alertmanager/README.md
index 81c14409cf7d..b201d98ac0ce 100644
--- a/bitnami/alertmanager/README.md
+++ b/bitnami/alertmanager/README.md
@@ -26,7 +26,7 @@ $ docker run --name alertmanager bitnami/alertmanager:latest
 
 
 * [`0-ol-7`, `0.15.0-ol-7-r12` (0/ol-7/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.15.0-ol-7-r12/0/ol-7/Dockerfile)
-* [`0-debian-9`, `0.15.0-debian-9-r11`, `0`, `0.15.0`, `0.15.0-r11`, `latest` (0/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.15.0-debian-9-r11/0/Dockerfile)
+* [`0-debian-9`, `0.15.0-debian-9-r12`, `0`, `0.15.0`, `0.15.0-r12`, `latest` (0/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.15.0-debian-9-r12/0/Dockerfile)
 
 Subscribe to project updates by watching the [bitnami/alertmanager GitHub repo](https://github.com/bitnami/bitnami-docker-alertmanager).