diff --git a/bitnami/cassandra/3.11/debian-10/Dockerfile b/bitnami/cassandra/3.11/debian-10/Dockerfile
index 2b1bc7dc2923..862c3beb5be8 100644
--- a/bitnami/cassandra/3.11/debian-10/Dockerfile
+++ b/bitnami/cassandra/3.11/debian-10/Dockerfile
@@ -26,7 +26,7 @@ COPY rootfs /
 RUN /opt/bitnami/scripts/cassandra/postunpack.sh
 RUN /opt/bitnami/scripts/java/postunpack.sh
 ENV BITNAMI_APP_NAME="cassandra" \
-    BITNAMI_IMAGE_VERSION="3.11.12-debian-10-r19" \
+    BITNAMI_IMAGE_VERSION="3.11.12-debian-10-r20" \
     JAVA_HOME="/opt/bitnami/java" \
     PATH="/opt/bitnami/python/bin:/opt/bitnami/java/bin:/opt/bitnami/common/bin:/opt/bitnami/cassandra/bin:$PATH"
 
diff --git a/bitnami/cassandra/README.md b/bitnami/cassandra/README.md
index 13db11be2259..bf44ea1564ac 100644
--- a/bitnami/cassandra/README.md
+++ b/bitnami/cassandra/README.md
@@ -51,7 +51,7 @@ Learn more about the Bitnami tagging policy and the difference between rolling t
 
 
 * [`4.0`, `4.0-debian-10`, `4.0.3`, `4.0.3-debian-10-r13`, `latest` (4.0/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-cassandra/blob/4.0.3-debian-10-r13/4.0/debian-10/Dockerfile)
-* [`3.11`, `3.11-debian-10`, `3.11.12`, `3.11.12-debian-10-r19` (3.11/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-cassandra/blob/3.11.12-debian-10-r19/3.11/debian-10/Dockerfile)
+* [`3.11`, `3.11-debian-10`, `3.11.12`, `3.11.12-debian-10-r20` (3.11/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-cassandra/blob/3.11.12-debian-10-r20/3.11/debian-10/Dockerfile)
 * [`3.0`, `3.0-debian-10`, `3.0.26`, `3.0.26-debian-10-r19` (3.0/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-cassandra/blob/3.0.26-debian-10-r19/3.0/debian-10/Dockerfile)
 
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