diff --git a/bitnami/harbor-portal/2/debian-12/Dockerfile b/bitnami/harbor-portal/2/debian-12/Dockerfile
index 4f1b1644043c..1def3809eb89 100644
--- a/bitnami/harbor-portal/2/debian-12/Dockerfile
+++ b/bitnami/harbor-portal/2/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="2026-07-12T12:31:15Z" \
+      org.opencontainers.image.created="2026-07-21T06:44:06Z" \
       org.opencontainers.image.description="Application packaged by Broadcom, Inc." \
       org.opencontainers.image.documentation="https://github.com/bitnami/containers/tree/main/bitnami/harbor-portal/README.md" \
       org.opencontainers.image.source="https://github.com/bitnami/containers/tree/main/bitnami/harbor-portal" \
@@ -29,7 +29,7 @@ RUN --mount=type=secret,id=downloads_url,env=SECRET_DOWNLOADS_URL \
     mkdir -p /tmp/bitnami/pkg/cache/ ; cd /tmp/bitnami/pkg/cache/ || exit 1 ; \
     COMPONENTS=( \
       "render-template-1.0.9-168-linux-${OS_ARCH}-debian-12" \
-      "nginx-1.31.2-0-linux-${OS_ARCH}-debian-12" \
+      "nginx-1.31.3-0-linux-${OS_ARCH}-debian-12" \
       "harbor-2.15.2-1-linux-${OS_ARCH}-debian-12" \
     ) ; \
     for COMPONENT in "${COMPONENTS[@]}"; do \
@@ -54,7 +54,7 @@ RUN /opt/bitnami/scripts/nginx/postunpack.sh
 RUN /opt/bitnami/scripts/harbor-portal/postunpack.sh
 ENV APP_VERSION="2.15.2" \
     BITNAMI_APP_NAME="harbor-portal" \
-    IMAGE_REVISION="2" \
+    IMAGE_REVISION="3" \
     NGINX_HTTPS_PORT_NUMBER="" \
     NGINX_HTTP_PORT_NUMBER="" \
     PATH="/opt/bitnami/common/bin:/opt/bitnami/nginx/sbin:$PATH"
diff --git a/bitnami/harbor-portal/2/debian-12/prebuildfs/opt/bitnami/checksums/nginx-1.31.2-0-linux-amd64-debian-12.tar.gz.sha256 b/bitnami/harbor-portal/2/debian-12/prebuildfs/opt/bitnami/checksums/nginx-1.31.2-0-linux-amd64-debian-12.tar.gz.sha256
deleted file mode 100644
index 7b12ba48e96c..000000000000
--- a/bitnami/harbor-portal/2/debian-12/prebuildfs/opt/bitnami/checksums/nginx-1.31.2-0-linux-amd64-debian-12.tar.gz.sha256
+++ /dev/null
@@ -1 +0,0 @@
-5d4d8794a61909bf4b6a3e44dec0e1ae6dcf491f15e4af955f71e941cc8e7d1b  nginx-1.31.2-0-linux-amd64-debian-12.tar.gz
diff --git a/bitnami/harbor-portal/2/debian-12/prebuildfs/opt/bitnami/checksums/nginx-1.31.2-0-linux-arm64-debian-12.tar.gz.sha256 b/bitnami/harbor-portal/2/debian-12/prebuildfs/opt/bitnami/checksums/nginx-1.31.2-0-linux-arm64-debian-12.tar.gz.sha256
deleted file mode 100644
index 79920392466a..000000000000
--- a/bitnami/harbor-portal/2/debian-12/prebuildfs/opt/bitnami/checksums/nginx-1.31.2-0-linux-arm64-debian-12.tar.gz.sha256
+++ /dev/null
@@ -1 +0,0 @@
-3aca751e4de2fc820a7829ba3ae5b8a3613ca72d585be9f6e64957d7aff1290f  nginx-1.31.2-0-linux-arm64-debian-12.tar.gz
diff --git a/bitnami/harbor-portal/2/debian-12/prebuildfs/opt/bitnami/checksums/nginx-1.31.3-0-linux-amd64-debian-12.tar.gz.sha256 b/bitnami/harbor-portal/2/debian-12/prebuildfs/opt/bitnami/checksums/nginx-1.31.3-0-linux-amd64-debian-12.tar.gz.sha256
new file mode 100644
index 000000000000..707a92c9c292
--- /dev/null
+++ b/bitnami/harbor-portal/2/debian-12/prebuildfs/opt/bitnami/checksums/nginx-1.31.3-0-linux-amd64-debian-12.tar.gz.sha256
@@ -0,0 +1 @@
+d7e9050b08f85b536e4c819e1cf321386ed936b241c18a8f6c60967f768b9423  nginx-1.31.3-0-linux-amd64-debian-12.tar.gz
diff --git a/bitnami/harbor-portal/2/debian-12/prebuildfs/opt/bitnami/checksums/nginx-1.31.3-0-linux-arm64-debian-12.tar.gz.sha256 b/bitnami/harbor-portal/2/debian-12/prebuildfs/opt/bitnami/checksums/nginx-1.31.3-0-linux-arm64-debian-12.tar.gz.sha256
new file mode 100644
index 000000000000..7a7481d683ac
--- /dev/null
+++ b/bitnami/harbor-portal/2/debian-12/prebuildfs/opt/bitnami/checksums/nginx-1.31.3-0-linux-arm64-debian-12.tar.gz.sha256
@@ -0,0 +1 @@
+5561b29fc84462cec11ed0d6dc9ad23ea6e8a786869e5fdf4b81580480d81351  nginx-1.31.3-0-linux-arm64-debian-12.tar.gz