diff --git a/automation/build/debian/11-ppc64le.dockerfile b/automation/build/debian/11-ppc64le.dockerfile
new file mode 100644
index 0000000000..d846b670d0
--- /dev/null
+++ b/automation/build/debian/11-ppc64le.dockerfile
@@ -0,0 +1,33 @@
+# syntax=docker/dockerfile:1
+FROM --platform=linux/amd64 debian:bullseye-slim
+LABEL maintainer.name="The Xen Project"
+LABEL maintainer.email="xen-devel@lists.xenproject.org"
+
+ENV DEBIAN_FRONTEND=noninteractive
+ENV CROSS_COMPILE=powerpc64le-linux-gnu-
+ENV XEN_TARGET_ARCH=ppc64
+
+RUN <<EOF
+#!/bin/bash
+    set -e
+
+    useradd --create-home user
+
+    apt-get -y update
+
+    DEPS=(
+        # Xen
+        bison
+        build-essential
+        checkpolicy
+        flex
+        gcc-powerpc64le-linux-gnu
+        python3-minimal
+    )
+
+    apt-get -y --no-install-recommends install "${DEPS[@]}"
+    rm -rf /var/lib/apt/lists/*
+EOF
+
+USER user
+WORKDIR /build
diff --git a/automation/build/debian/bullseye-ppc64le.dockerfile b/automation/build/debian/bullseye-ppc64le.dockerfile
deleted file mode 100644
index e166d205f3..0000000000
--- a/automation/build/debian/bullseye-ppc64le.dockerfile
+++ /dev/null
@@ -1,32 +0,0 @@
-# syntax=docker/dockerfile:1
-FROM --platform=linux/amd64 debian:bullseye-slim
-LABEL maintainer.name="The Xen Project" \
-      maintainer.email="xen-devel@lists.xenproject.org"
-
-ENV DEBIAN_FRONTEND=noninteractive
-ENV USER root
-
-# Add compiler path
-ENV CROSS_COMPILE powerpc64le-linux-gnu-
-
-RUN mkdir /build
-WORKDIR /build
-
-# build depends
-RUN apt-get update && \
-    apt-get --quiet --yes --no-install-recommends install \
-        bison \
-        build-essential \
-        checkpolicy \
-        flex \
-        gawk \
-        gcc-powerpc64le-linux-gnu \
-        make \
-        python3-minimal \
-        # QEMU runtime dependencies for test phase
-        libglib2.0-0 \
-        libpixman-1-0 \
-        && \
-        apt-get autoremove -y && \
-        apt-get clean && \
-        rm -rf /var/lib/apt/lists* /tmp/* /var/tmp/*
diff --git a/automation/gitlab-ci/build.yaml b/automation/gitlab-ci/build.yaml
index 8351029ecb..ba732fb962 100644
--- a/automation/gitlab-ci/build.yaml
+++ b/automation/gitlab-ci/build.yaml
@@ -493,21 +493,6 @@ archlinux-current-gcc-riscv64-randconfig:
     RANDCONFIG: y
     <<: *riscv-fixed-randconfig
 
-# Power cross-build
-debian-bullseye-gcc-ppc64le:
-  extends: .gcc-ppc64le-cross-build
-  variables:
-    CONTAINER: debian:bullseye-ppc64le
-    KBUILD_DEFCONFIG: ppc64_defconfig
-    HYPERVISOR_ONLY: y
-
-debian-bullseye-gcc-ppc64le-debug:
-  extends: .gcc-ppc64le-cross-build-debug
-  variables:
-    CONTAINER: debian:bullseye-ppc64le
-    KBUILD_DEFCONFIG: ppc64_defconfig
-    HYPERVISOR_ONLY: y
-
 # Yocto test jobs
 yocto-qemuarm64:
   extends: .yocto-test-arm64
@@ -733,6 +718,20 @@ opensuse-tumbleweed-gcc-debug:
   allow_failure: true
 
 # PowerPC builds (x86 cross)
+debian-11-ppc64le-gcc:
+  extends: .gcc-ppc64le-cross-build
+  variables:
+    CONTAINER: debian:11-ppc64le
+    KBUILD_DEFCONFIG: ppc64_defconfig
+    HYPERVISOR_ONLY: y
+
+debian-11-ppc64le-gcc-debug:
+  extends: .gcc-ppc64le-cross-build-debug
+  variables:
+    CONTAINER: debian:11-ppc64le
+    KBUILD_DEFCONFIG: ppc64_defconfig
+    HYPERVISOR_ONLY: y
+
 debian-12-ppc64le-gcc:
   extends: .gcc-ppc64le-cross-build
   variables:
diff --git a/automation/scripts/containerize b/automation/scripts/containerize
index aa3433f0dc..5c3f6782d9 100755
--- a/automation/scripts/containerize
+++ b/automation/scripts/containerize
@@ -31,7 +31,7 @@ case "_${CONTAINER}" in
     _centos7) CONTAINER="${BASE}/centos:7" ;;
     _fedora) CONTAINER="${BASE}/fedora:29";;
     _focal) CONTAINER="${BASE}/ubuntu:focal" ;;
-    _bullseye-ppc64le) CONTAINER="${BASE}/debian:bullseye-ppc64le" ;;
+    _bullseye-ppc64le) CONTAINER="${BASE}/debian:11-ppc64le" ;;
     _bookworm-ppc64le) CONTAINER="${BASE}/debian:12-ppc64le" ;;
     _buster-gcc-ibt) CONTAINER="${BASE}/debian:buster-gcc-ibt" ;;
     _bookworm|_) CONTAINER="${BASE}/debian:bookworm" ;;