diff --git a/bitnami/alertmanager/0/ol-7/Dockerfile b/bitnami/alertmanager/0/ol-7/Dockerfile
index 7c0a4d667910..ba5b5fcce6c8 100644
--- a/bitnami/alertmanager/0/ol-7/Dockerfile
+++ b/bitnami/alertmanager/0/ol-7/Dockerfile
@@ -4,16 +4,16 @@ LABEL maintainer "Bitnami <containers@bitnami.com>"
 COPY prebuildfs /
 # Install required system packages and dependencies
 RUN install_packages ca-certificates curl gzip hostname libaio-devel procps-ng sudo tar wget which
-RUN wget -nc -P /tmp/bitnami/pkg/cache/ https://downloads.bitnami.com/files/stacksmith/alertmanager-0.19.0-1-linux-x86_64-ol-7.tar.gz && \
-    echo "fa1d5ab40af6967e945d6db545f29a37ba5362f48b4ed3dc8a0973e0b3b71846  /tmp/bitnami/pkg/cache/alertmanager-0.19.0-1-linux-x86_64-ol-7.tar.gz" | sha256sum -c - && \
-    tar -zxf /tmp/bitnami/pkg/cache/alertmanager-0.19.0-1-linux-x86_64-ol-7.tar.gz -P --transform 's|^[^/]*/files|/opt/bitnami|' --wildcards '*/files' && \
-    rm -rf /tmp/bitnami/pkg/cache/alertmanager-0.19.0-1-linux-x86_64-ol-7.tar.gz
+RUN wget -nc -P /tmp/bitnami/pkg/cache/ https://downloads.bitnami.com/files/stacksmith/alertmanager-0.20.0-0-linux-x86_64-ol-7.tar.gz && \
+    echo "fda3e0b58034be98cf3ed1963ac9566dfba5dd99ca2683d647a94feab7ea6181  /tmp/bitnami/pkg/cache/alertmanager-0.20.0-0-linux-x86_64-ol-7.tar.gz" | sha256sum -c - && \
+    tar -zxf /tmp/bitnami/pkg/cache/alertmanager-0.20.0-0-linux-x86_64-ol-7.tar.gz -P --transform 's|^[^/]*/files|/opt/bitnami|' --wildcards '*/files' && \
+    rm -rf /tmp/bitnami/pkg/cache/alertmanager-0.20.0-0-linux-x86_64-ol-7.tar.gz
 RUN ln -sf /opt/bitnami/alertmanager/conf /etc/alertmanager
 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-ol-7-r113" \
+    BITNAMI_IMAGE_VERSION="0.20.0-ol-7-r0" \
     PATH="/opt/bitnami/alertmanager/bin:$PATH"
 
 EXPOSE 9093
diff --git a/bitnami/alertmanager/README.md b/bitnami/alertmanager/README.md
index 54aabaf9cbaf..cc79c4c25f4a 100644
--- a/bitnami/alertmanager/README.md
+++ b/bitnami/alertmanager/README.md
@@ -46,8 +46,8 @@ $ 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`, `0.20.0-ol-7-r0` (0/ol-7/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.20.0-ol-7-r0/0/ol-7/Dockerfile)
 * [`0-debian-9`, `0.20.0-debian-9-r0`, `0`, `0.20.0`, `0.20.0-r0`, `latest` (0/debian-9/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.20.0-debian-9-r0/0/debian-9/Dockerfile)
-* [`0-ol-7`, `0.19.0-ol-7-r113` (0/ol-7/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.19.0-ol-7-r113/0/ol-7/Dockerfile)
 * [`0-photon-3`, `0.0.0-photon-3-r0` (0/photon-3/Dockerfile)](https://github.com/bitnami/bitnami-docker-alertmanager/blob/0.0.0-photon-3-r0/0/photon-3/Dockerfile)
 
 Subscribe to project updates by watching the [bitnami/alertmanager GitHub repo](https://github.com/bitnami/bitnami-docker-alertmanager).