diff --git a/bitnami/alertmanager/0/debian-12/Dockerfile b/bitnami/alertmanager/0/debian-12/Dockerfile
index 67d6da95f969..8d9e10c433de 100644
--- a/bitnami/alertmanager/0/debian-12/Dockerfile
+++ b/bitnami/alertmanager/0/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="2026-08-13T07:08:47Z" \
+      org.opencontainers.image.created="2026-08-13T19:19:09Z" \
       org.opencontainers.image.description="Application packaged by Broadcom, Inc." \
       org.opencontainers.image.documentation="https://github.com/bitnami/containers/tree/main/bitnami/alertmanager/README.md" \
       org.opencontainers.image.source="https://github.com/bitnami/containers/tree/main/bitnami/alertmanager" \
@@ -28,7 +28,7 @@ RUN --mount=type=secret,id=downloads_url,env=SECRET_DOWNLOADS_URL \
     DOWNLOADS_URL=${SECRET_DOWNLOADS_URL:-${DOWNLOADS_URL}} ; \
     mkdir -p /tmp/bitnami/pkg/cache/ ; cd /tmp/bitnami/pkg/cache/ || exit 1 ; \
     COMPONENTS=( \
-      "alertmanager-0.33.1-1-linux-${OS_ARCH}-debian-12" \
+      "alertmanager-0.33.1-2-linux-${OS_ARCH}-debian-12" \
     ) ; \
     for COMPONENT in "${COMPONENTS[@]}"; do \
       if [ ! -f "${COMPONENT}.tar.gz" ]; then \
@@ -50,7 +50,7 @@ RUN uninstall_packages curl
 RUN mkdir -p /opt/bitnami/alertmanager/data/ && chmod g+rwX /opt/bitnami/alertmanager/data/
 ENV APP_VERSION="0.33.1" \
     BITNAMI_APP_NAME="alertmanager" \
-    IMAGE_REVISION="3" \
+    IMAGE_REVISION="4" \
     PATH="/opt/bitnami/alertmanager/bin:$PATH"
 
 EXPOSE 9093
diff --git a/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.33.1-1-linux-amd64-debian-12.tar.gz.sha256 b/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.33.1-1-linux-amd64-debian-12.tar.gz.sha256
deleted file mode 100644
index 4373dbb4758a..000000000000
--- a/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.33.1-1-linux-amd64-debian-12.tar.gz.sha256
+++ /dev/null
@@ -1 +0,0 @@
-4681b2bf0c46444670b22f68082dff5ddc965f7657aa7b2da118f250862d501b  alertmanager-0.33.1-1-linux-amd64-debian-12.tar.gz
diff --git a/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.33.1-1-linux-arm64-debian-12.tar.gz.sha256 b/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.33.1-1-linux-arm64-debian-12.tar.gz.sha256
deleted file mode 100644
index 8c23761f6b7d..000000000000
--- a/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.33.1-1-linux-arm64-debian-12.tar.gz.sha256
+++ /dev/null
@@ -1 +0,0 @@
-a8502f4a1e64097a54911e123e385aad73027c02d5b94bb580d7673267c8dd9f  alertmanager-0.33.1-1-linux-arm64-debian-12.tar.gz
diff --git a/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.33.1-2-linux-amd64-debian-12.tar.gz.sha256 b/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.33.1-2-linux-amd64-debian-12.tar.gz.sha256
new file mode 100644
index 000000000000..a8b944657a7f
--- /dev/null
+++ b/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.33.1-2-linux-amd64-debian-12.tar.gz.sha256
@@ -0,0 +1 @@
+af57998a6b6d2ac49845d2ee5d75ee9a554f024e9a95b70da0bca13f0bdd9418  alertmanager-0.33.1-2-linux-amd64-debian-12.tar.gz
diff --git a/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.33.1-2-linux-arm64-debian-12.tar.gz.sha256 b/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.33.1-2-linux-arm64-debian-12.tar.gz.sha256
new file mode 100644
index 000000000000..1697855352e3
--- /dev/null
+++ b/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.33.1-2-linux-arm64-debian-12.tar.gz.sha256
@@ -0,0 +1 @@
+594e59bdaa05394f09935ef24815cdffd157485100f33ee27d7f27c76bedf0ab  alertmanager-0.33.1-2-linux-arm64-debian-12.tar.gz