diff --git a/bitnami/valkey-cluster/9.1/debian-12/Dockerfile b/bitnami/valkey-cluster/9.1/debian-12/Dockerfile
index 0fdeeaeed8a8..caf04d9dab6d 100644
--- a/bitnami/valkey-cluster/9.1/debian-12/Dockerfile
+++ b/bitnami/valkey-cluster/9.1/debian-12/Dockerfile
@@ -7,7 +7,7 @@ ARG DOWNLOADS_URL="https://downloads.bitnami.com/files/stacksmith"
 ARG TARGETARCH
 
 LABEL org.opencontainers.image.base.name="docker.io/bitnami/minideb:bookworm" \
-      org.opencontainers.image.created="2026-07-08T07:01:15Z" \
+      org.opencontainers.image.created="2026-07-14T09:19:13Z" \
       org.opencontainers.image.description="Application packaged by Broadcom, Inc." \
       org.opencontainers.image.documentation="https://github.com/bitnami/containers/tree/main/bitnami/valkey-cluster/README.md" \
       org.opencontainers.image.source="https://github.com/bitnami/containers/tree/main/bitnami/valkey-cluster" \
@@ -50,7 +50,7 @@ COPY rootfs /
 RUN /opt/bitnami/scripts/valkey-cluster/postunpack.sh
 ENV APP_VERSION="9.1.0" \
     BITNAMI_APP_NAME="valkey-cluster" \
-    IMAGE_REVISION="8" \
+    IMAGE_REVISION="9" \
     PATH="/opt/bitnami/common/bin:/opt/bitnami/valkey/bin:$PATH"
 
 EXPOSE 6379
diff --git a/bitnami/valkey-cluster/9.1/debian-12/rootfs/opt/bitnami/scripts/libvalkey.sh b/bitnami/valkey-cluster/9.1/debian-12/rootfs/opt/bitnami/scripts/libvalkey.sh
index b9bca7f94031..a275e9a6a67c 100644
--- a/bitnami/valkey-cluster/9.1/debian-12/rootfs/opt/bitnami/scripts/libvalkey.sh
+++ b/bitnami/valkey-cluster/9.1/debian-12/rootfs/opt/bitnami/scripts/libvalkey.sh
@@ -54,9 +54,7 @@ valkey_conf_set() {
     value="${value//\\/\\\\}"
     value="${value//&/\\&}"
     value="${value//\?/\\?}"
-    # 2. \001-\037 strips all ASCII control characters (1-31)
-    #    NUL is excluded: Bash cannot store it, so including it turns the range
-    #    into a literal '-' that would strip dashes from the value
+    # 2. \001-\037 strips all ASCII control characters (1-31), \000 is the NUL character (0) that Bash cannot store
     # 3. \177 strips DEL (delete) character (127)
     value="${value//[$'\001'-$'\037'$'\177']}"
     # 4. If the value is empty, set it to an empty string