diff --git a/bitnami/fluentd/1/debian-10/Dockerfile b/bitnami/fluentd/1/debian-10/Dockerfile
index c7aa7b186917..3454ebe4bce6 100644
--- a/bitnami/fluentd/1/debian-10/Dockerfile
+++ b/bitnami/fluentd/1/debian-10/Dockerfile
@@ -17,7 +17,7 @@ RUN chmod g+rwX /opt/bitnami
 COPY rootfs /
 RUN /opt/bitnami/scripts/fluentd/postunpack.sh
 ENV BITNAMI_APP_NAME="fluentd" \
-    BITNAMI_IMAGE_VERSION="1.12.2-debian-10-r8" \
+    BITNAMI_IMAGE_VERSION="1.12.2-debian-10-r9" \
     GEM_HOME="/opt/bitnami/fluentd" \
     PATH="/opt/bitnami/ruby/bin:/opt/bitnami/common/bin:/opt/bitnami/fluentd/bin:$PATH"
 
diff --git a/bitnami/fluentd/1/debian-10/docker-compose.yml b/bitnami/fluentd/1/debian-10/docker-compose.yml
index f3c2dea24b6a..98cdc856431c 100644
--- a/bitnami/fluentd/1/debian-10/docker-compose.yml
+++ b/bitnami/fluentd/1/debian-10/docker-compose.yml
@@ -2,7 +2,7 @@ version: '2'
 
 services:
   fluentd:
-    image: docker.io/bitnami/fluentd:1-debian-10
+    image: docker.io/bitnami/fluentd:1
     ports:
       - '24224:24224'
       - '5140:5140'
diff --git a/bitnami/fluentd/1/debian-10/prebuildfs/opt/bitnami/scripts/liblog.sh b/bitnami/fluentd/1/debian-10/prebuildfs/opt/bitnami/scripts/liblog.sh
index 60ec4cbfc32a..c7c0f6d4422a 100644
--- a/bitnami/fluentd/1/debian-10/prebuildfs/opt/bitnami/scripts/liblog.sh
+++ b/bitnami/fluentd/1/debian-10/prebuildfs/opt/bitnami/scripts/liblog.sh
@@ -106,5 +106,7 @@ indent() {
     for ((i = 0; i < num; i++)); do
         indent_unit="${indent_unit}${char}"
     done
+    # shellcheck disable=SC2001
+    # Complex regex, see https://github.com/koalaman/shellcheck/wiki/SC2001#exceptions
     echo "$string" | sed "s/^/${indent_unit}/"
 }
diff --git a/bitnami/fluentd/1/debian-10/prebuildfs/opt/bitnami/scripts/libversion.sh b/bitnami/fluentd/1/debian-10/prebuildfs/opt/bitnami/scripts/libversion.sh
index 66d4f457bdd2..f3bc7568bfa5 100644
--- a/bitnami/fluentd/1/debian-10/prebuildfs/opt/bitnami/scripts/libversion.sh
+++ b/bitnami/fluentd/1/debian-10/prebuildfs/opt/bitnami/scripts/libversion.sh
@@ -9,7 +9,7 @@
 
 # Functions
 ########################
-# Gets semantic version 
+# Gets semantic version
 # Arguments:
 #   $1 - version: string to extract major.minor.patch
 #   $2 - section: 1 to extract major, 2 to extract minor, 3 to extract patch
@@ -38,7 +38,7 @@ get_sematic_version () {
         done
 
         local number_regex='^[0-9]+$'
-        if [[ "$section" =~ $number_regex ]] && (( $section > 0 )) && (( $section <= 3 )); then
+        if [[ "$section" =~ $number_regex ]] && (( section > 0 )) && (( section <= 3 )); then
              echo "${version_sections[$section]}"
              return
         else
diff --git a/bitnami/fluentd/README.md b/bitnami/fluentd/README.md
index 4b515b31936c..c549e8b19cc2 100644
--- a/bitnami/fluentd/README.md
+++ b/bitnami/fluentd/README.md
@@ -32,7 +32,7 @@ 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/).
 
 
-* [`1`, `1-debian-10`, `1.12.2`, `1.12.2-debian-10-r8`, `latest` (1/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-fluentd/blob/1.12.2-debian-10-r8/1/debian-10/Dockerfile)
+* [`1`, `1-debian-10`, `1.12.2`, `1.12.2-debian-10-r9`, `latest` (1/debian-10/Dockerfile)](https://github.com/bitnami/bitnami-docker-fluentd/blob/1.12.2-debian-10-r9/1/debian-10/Dockerfile)
 
 Subscribe to project updates by watching the [bitnami/fluentd GitHub repo](https://github.com/bitnami/bitnami-docker-fluentd).
 
diff --git a/bitnami/fluentd/docker-compose.yml b/bitnami/fluentd/docker-compose.yml
index f3c2dea24b6a..98cdc856431c 100644
--- a/bitnami/fluentd/docker-compose.yml
+++ b/bitnami/fluentd/docker-compose.yml
@@ -2,7 +2,7 @@ version: '2'
 
 services:
   fluentd:
-    image: docker.io/bitnami/fluentd:1-debian-10
+    image: docker.io/bitnami/fluentd:1
     ports:
       - '24224:24224'
       - '5140:5140'