diff --git a/bitnami/harbor-adapter-trivy/2/debian-10/Dockerfile b/bitnami/harbor-adapter-trivy/2/debian-10/Dockerfile
index c50156b67a35..9fe40de838e2 100644
--- a/bitnami/harbor-adapter-trivy/2/debian-10/Dockerfile
+++ b/bitnami/harbor-adapter-trivy/2/debian-10/Dockerfile
@@ -18,7 +18,7 @@ RUN chmod g+rwX /opt/bitnami
 COPY rootfs /
 RUN /opt/bitnami/scripts/harbor-adapter-trivy/postunpack.sh
 ENV BITNAMI_APP_NAME="harbor-adapter-trivy" \
-    BITNAMI_IMAGE_VERSION="2.1.3-debian-10-r5" \
+    BITNAMI_IMAGE_VERSION="2.1.3-debian-10-r6" \
     PATH="/opt/bitnami/harbor-adapter-trivy/bin:/opt/bitnami/common/bin:$PATH"
 
 WORKDIR /opt/bitnami/harbor-adapter-trivy
diff --git a/bitnami/harbor-adapter-trivy/2/debian-10/prebuildfs/opt/bitnami/scripts/libos.sh b/bitnami/harbor-adapter-trivy/2/debian-10/prebuildfs/opt/bitnami/scripts/libos.sh
index f38437a1d407..6a7512281470 100644
--- a/bitnami/harbor-adapter-trivy/2/debian-10/prebuildfs/opt/bitnami/scripts/libos.sh
+++ b/bitnami/harbor-adapter-trivy/2/debian-10/prebuildfs/opt/bitnami/scripts/libos.sh
@@ -6,6 +6,7 @@
 
 # Load Generic Libraries
 . /opt/bitnami/scripts/liblog.sh
+. /opt/bitnami/scripts/libfs.sh
 
 # Functions
 
@@ -118,7 +119,7 @@ ensure_user_exists() {
         local -a group_args=("$group")
         $is_system_user && group_args+=("--system")
         ensure_group_exists "${group_args[@]}"
-        usermod -a -G "$group" "$user" >/dev/null 2>&1
+        usermod -g "$group" "$user" >/dev/null 2>&1
     fi
 
     if [[ -n "$home" ]]; then
diff --git a/bitnami/harbor-adapter-trivy/README.md b/bitnami/harbor-adapter-trivy/README.md
index 2a56c1c7d33b..68c9b90c9f35 100644
--- a/bitnami/harbor-adapter-trivy/README.md
+++ b/bitnami/harbor-adapter-trivy/README.md
@@ -42,7 +42,7 @@ Non-root container images add an extra layer of security and are generally recom
 Learn more about the Bitnami tagging policy and the difference between rolling tags and immutable tags [in our documentation page](https://docs.bitnami.com/tutorials/understand-rolling-tags-containers/).
 
 
-* [`2`, `2-debian-10`, `2.1.3`, `2.1.3-debian-10-r5`, `latest` (2/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-harbor-adapter-trivy/blob/2.1.3-debian-10-r5/2/debian-10/Dockerfile)
+* [`2`, `2-debian-10`, `2.1.3`, `2.1.3-debian-10-r6`, `latest` (2/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-harbor-adapter-trivy/blob/2.1.3-debian-10-r6/2/debian-10/Dockerfile)
 
 Subscribe to project updates by watching the [bitnami/harbor-adapter-trivy GitHub repo](https://github.com/bitnami/bitnami-docker-harbor-adapter-trivy).