diff --git a/bitnami/alertmanager/0/debian-12/Dockerfile b/bitnami/alertmanager/0/debian-12/Dockerfile
index 034b8263dced..37e8e30010db 100644
--- a/bitnami/alertmanager/0/debian-12/Dockerfile
+++ b/bitnami/alertmanager/0/debian-12/Dockerfile
@@ -7,7 +7,7 @@ ARG DOWNLOADS_URL="downloads.bitnami.com/files/stacksmith"
 ARG TARGETARCH
 
 LABEL org.opencontainers.image.base.name="docker.io/bitnami/minideb:bookworm" \
-      org.opencontainers.image.created="2026-05-26T07:32:59Z" \
+      org.opencontainers.image.created="2026-06-03T03:53:19Z" \
       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" \
@@ -28,17 +28,17 @@ 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-0.32.1-3-linux-${OS_ARCH}-debian-12" \
+      "alertmanager-0.32.1-4-linux-${OS_ARCH}-debian-12" \
     ) ; \
     for COMPONENT in "${COMPONENTS[@]}"; do \
       if [ ! -f "${COMPONENT}.tar.gz" ]; then \
         curl -SsLf "https://${DOWNLOADS_URL}/${COMPONENT}.tar.gz" -O ; \
-        curl -SsLf "https://${DOWNLOADS_URL}/${COMPONENT}.tar.gz.sha256" -O ; \
       fi ; \
-      sha256sum -c "${COMPONENT}.tar.gz.sha256" ; \
+      sha256sum -c "/opt/bitnami/checksums/${COMPONENT}.tar.gz.sha256" ; \
       tar -zxf "${COMPONENT}.tar.gz" -C /opt/bitnami --strip-components=2 --no-same-owner ; \
-      rm -rf "${COMPONENT}".tar.gz{,.sha256} ; \
-    done
+      rm -rf "${COMPONENT}".tar.gz ; \
+    done ; \
+    rm -rf /opt/bitnami/checksums ;
 RUN apt-get update && apt-get upgrade -y && \
     apt-get clean && rm -rf /var/lib/apt/lists /var/cache/apt/archives
 RUN ln -sf /opt/bitnami/alertmanager/conf /etc/alertmanager
@@ -50,7 +50,7 @@ RUN uninstall_packages curl
 RUN mkdir -p /opt/bitnami/alertmanager/data/ && chmod g+rwX /opt/bitnami/alertmanager/data/
 ENV APP_VERSION="0.32.1" \
     BITNAMI_APP_NAME="alertmanager" \
-    IMAGE_REVISION="6" \
+    IMAGE_REVISION="7" \
     PATH="/opt/bitnami/alertmanager/bin:$PATH"
 
 EXPOSE 9093
diff --git a/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.32.1-4-linux-amd64-debian-12.tar.gz.sha256 b/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.32.1-4-linux-amd64-debian-12.tar.gz.sha256
new file mode 100644
index 000000000000..dc96162e2001
--- /dev/null
+++ b/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.32.1-4-linux-amd64-debian-12.tar.gz.sha256
@@ -0,0 +1 @@
+055a254ccb73f4c0671343681c0780795ca60904e84e3151f05f654f63de6707  alertmanager-0.32.1-4-linux-amd64-debian-12.tar.gz
diff --git a/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.32.1-4-linux-arm64-debian-12.tar.gz.sha256 b/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.32.1-4-linux-arm64-debian-12.tar.gz.sha256
new file mode 100644
index 000000000000..2f6d99d226f0
--- /dev/null
+++ b/bitnami/alertmanager/0/debian-12/prebuildfs/opt/bitnami/checksums/alertmanager-0.32.1-4-linux-arm64-debian-12.tar.gz.sha256
@@ -0,0 +1 @@
+155b789d0ae7dfa7800afd1dca6bde93811542d6b78825046ebe7a0b389a5c69  alertmanager-0.32.1-4-linux-arm64-debian-12.tar.gz