diff --git a/bitnami/cluster-autoscaler/1/debian-9/Dockerfile b/bitnami/cluster-autoscaler/1/debian-9/Dockerfile
index 72eb85404b97..a4b98691dc4b 100644
--- a/bitnami/cluster-autoscaler/1/debian-9/Dockerfile
+++ b/bitnami/cluster-autoscaler/1/debian-9/Dockerfile
@@ -13,7 +13,7 @@ LABEL maintainer "Bitnami <containers@bitnami.com>"
 
 COPY --from=buildenv /opt/bitnami/cluster-autoscaler /opt/bitnami/cluster-autoscaler
 ENV BITNAMI_APP_NAME="cluster-autoscaler" \
-    BITNAMI_IMAGE_VERSION="1.3.1-debian-9-r20" \
+    BITNAMI_IMAGE_VERSION="1.3.1-debian-9-r21" \
     PATH="/opt/bitnami/cluster-autoscaler/bin:$PATH"
 
 RUN install_packages ca-certificates
diff --git a/bitnami/cluster-autoscaler/README.md b/bitnami/cluster-autoscaler/README.md
index 54865fd8748f..0042ea92b154 100644
--- a/bitnami/cluster-autoscaler/README.md
+++ b/bitnami/cluster-autoscaler/README.md
@@ -34,7 +34,7 @@ Azure https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cl
 
 
 * [`1-ol-7`, `1.3.1-ol-7-r18` (1/ol-7/Dockerfile)](https://github.com/bitnami/bitnami-docker-cluster-autoscaler/blob/1.3.1-ol-7-r18/1/ol-7/Dockerfile)
-* [`1-debian-9`, `1.3.1-debian-9-r20`, `1`, `1.3.1`, `1.3.1-r20`, `latest` (1/Dockerfile)](https://github.com/bitnami/bitnami-docker-cluster-autoscaler/blob/1.3.1-debian-9-r20/1/Dockerfile)
+* [`1-debian-9`, `1.3.1-debian-9-r21`, `1`, `1.3.1`, `1.3.1-r21`, `latest` (1/Dockerfile)](https://github.com/bitnami/bitnami-docker-cluster-autoscaler/blob/1.3.1-debian-9-r21/1/Dockerfile)
 
 Subscribe to project updates by watching the [bitnami/cluster-autoscaler GitHub repo](https://github.com/bitnami/bitnami-docker-cluster-autoscaler).