diff --git a/bitnami/alertmanager/0/ol-7/Dockerfile b/bitnami/alertmanager/0/ol-7/Dockerfile
index 07ec491eb2f4..4f6ca9d2a8a8 100644
--- a/bitnami/alertmanager/0/ol-7/Dockerfile
+++ b/bitnami/alertmanager/0/ol-7/Dockerfile
@@ -1,4 +1,4 @@
-FROM bitnami/oraclelinux-extras:7-r471
+FROM bitnami/oraclelinux-extras:7-r472
 LABEL maintainer "Bitnami <containers@bitnami.com>"
 
 # Install required system packages and dependencies
@@ -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="0.19.0-ol-7-r19" \
+    BITNAMI_IMAGE_VERSION="0.19.0-ol-7-r20" \
     PATH="/opt/bitnami/alertmanager/bin:$PATH"
 
 EXPOSE 9093
diff --git a/bitnami/alertmanager/README.md b/bitnami/alertmanager/README.md
index 9f99b840b717..44729767c082 100644
--- a/bitnami/alertmanager/README.md
+++ b/bitnami/alertmanager/README.md
@@ -46,7 +46,7 @@ $ kubectl apply -f test.yaml
 Learn more about the Bitnami tagging policy and the difference between rolling tags and immutable tags [in our documentation page](https://docs.bitnami.com/containers/how-to/understand-rolling-tags-containers/).
 
 
-* [`0-ol-7`, `0.19.0-ol-7-r19` (0/ol-7/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.19.0-ol-7-r19/0/ol-7/Dockerfile)
+* [`0-ol-7`, `0.19.0-ol-7-r20` (0/ol-7/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.19.0-ol-7-r20/0/ol-7/Dockerfile)
 * [`0-debian-9`, `0.19.0-debian-9-r16`, `0`, `0.19.0`, `0.19.0-r16`, `latest` (0/debian-9/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.19.0-debian-9-r16/0/debian-9/Dockerfile)
 
 Subscribe to project updates by watching the [bitnami/alertmanager GitHub repo](https://github.com/bitnami/bitnami-docker-alertmanager).