diff --git a/bitnami/prometheus/2/debian-9/Dockerfile b/bitnami/prometheus/2/debian-9/Dockerfile
index fc1917cb5cbf..e2f43bd17feb 100644
--- a/bitnami/prometheus/2/debian-9/Dockerfile
+++ b/bitnami/prometheus/2/debian-9/Dockerfile
@@ -13,7 +13,7 @@ LABEL maintainer "Bitnami <containers@bitnami.com>"
 
 COPY --from=buildenv /opt/bitnami/prometheus /opt/bitnami/prometheus
 ENV BITNAMI_APP_NAME="prometheus" \
-    BITNAMI_IMAGE_VERSION="2.6.0-debian-9-r19" \
+    BITNAMI_IMAGE_VERSION="2.6.0-debian-9-r20" \
     PATH="/opt/bitnami/prometheus/bin:$PATH"
 
 RUN install_packages ca-certificates
diff --git a/bitnami/prometheus/README.md b/bitnami/prometheus/README.md
index cf39a84ba525..4db8f0267b7c 100644
--- a/bitnami/prometheus/README.md
+++ b/bitnami/prometheus/README.md
@@ -57,7 +57,7 @@ Learn more about the Bitnami tagging policy and the difference between rolling t
 
 
 * [`2-ol-7`, `2.6.0-ol-7-r20` (2/ol-7/Dockerfile)](https://github.com/bitnami/bitnami-docker-prometheus/blob/2.6.0-ol-7-r20/2/ol-7/Dockerfile)
-* [`2-debian-9`, `2.6.0-debian-9-r19`, `2`, `2.6.0`, `2.6.0-r19`, `latest` (2/debian-9/Dockerfile)](https://github.com/bitnami/bitnami-docker-prometheus/blob/2.6.0-debian-9-r19/2/debian-9/Dockerfile)
+* [`2-debian-9`, `2.6.0-debian-9-r20`, `2`, `2.6.0`, `2.6.0-r20`, `latest` (2/debian-9/Dockerfile)](https://github.com/bitnami/bitnami-docker-prometheus/blob/2.6.0-debian-9-r20/2/debian-9/Dockerfile)
 
 Subscribe to project updates by watching the [bitnami/prometheus GitHub repo](https://github.com/bitnami/bitnami-docker-prometheus).