diff --git a/tools/docker/Makefile b/tools/docker/Makefile
index dfde496a29..8b8b3ff281 100644
--- a/tools/docker/Makefile
+++ b/tools/docker/Makefile
@@ -212,7 +212,7 @@ define manylinux_inner =
 .PHONY: python_$1_manylinux_cp$2_$3
 python_$1_manylinux_cp$2_$3: python/$1/manylinux.Dockerfile export/python/manylinux/build-manylinux.sh
 	@docker image rm -f ${IMAGE}:$$@ 2>/dev/null
-	${DOCKER_BUILD_CMD} \
+	${DOCKER_BUILDX_CMD} --platform linux/$1 \
  --tag ${IMAGE}:$$@ \
  --build-arg GIT_BRANCH=${OR_TOOLS_BRANCH} \
  --build-arg GIT_SHA1=${OR_TOOLS_SHA1} \
diff --git a/tools/release/build_delivery_manylinux_amd64.sh b/tools/release/build_delivery_manylinux_amd64.sh
index 5c49e443fe..735b69a018 100755
--- a/tools/release/build_delivery_manylinux_amd64.sh
+++ b/tools/release/build_delivery_manylinux_amd64.sh
@@ -73,8 +73,9 @@ function build_delivery() {
   cd "${RELEASE_DIR}" || exit 2
 
   # Build env
+  # https://github.com/containerd/containerd/blob/v1.4.3/platforms/platforms.go#L63
   echo -n "Build ${ORTOOLS_IMG}:env..." | tee -a "${ROOT_DIR}/build.log"
-  docker buildx build \
+  docker buildx build --platform linux/amd64 \
     --tag "${ORTOOLS_IMG}":env \
     --build-arg ORTOOLS_GIT_BRANCH="${ORTOOLS_BRANCH}" \
     --build-arg ORTOOLS_GIT_SHA1="${ORTOOLS_SHA1}" \
@@ -84,7 +85,7 @@ function build_delivery() {
 
   # Build devel
   echo -n "Build ${ORTOOLS_IMG}:devel..." | tee -a "${ROOT_DIR}/build.log"
-  docker buildx build \
+  docker buildx build --platform linux/amd64 \
     --tag "${ORTOOLS_IMG}":devel \
     --build-arg ORTOOLS_GIT_BRANCH="${ORTOOLS_BRANCH}" \
     --build-arg ORTOOLS_GIT_SHA1="${ORTOOLS_SHA1}" \
@@ -94,7 +95,7 @@ function build_delivery() {
 
   # Build delivery
   echo -n "Build ${ORTOOLS_IMG}:${ORTOOLS_DELIVERY}..." | tee -a "${ROOT_DIR}/build.log"
-  docker buildx build \
+  docker buildx build --platform linux/amd64 \
     --tag "${ORTOOLS_IMG}":"${ORTOOLS_DELIVERY}" \
     --build-arg ORTOOLS_GIT_BRANCH="${ORTOOLS_BRANCH}" \
     --build-arg ORTOOLS_GIT_SHA1="${ORTOOLS_SHA1}" \
diff --git a/tools/release/publish_delivery_manylinux_amd64.sh b/tools/release/publish_delivery_manylinux_amd64.sh
index bb694ed92a..a80d2e9598 100755
--- a/tools/release/publish_delivery_manylinux_amd64.sh
+++ b/tools/release/publish_delivery_manylinux_amd64.sh
@@ -70,7 +70,7 @@ function publish_delivery() {
 
   # Publish delivery
   echo -n "Build ${ORTOOLS_IMG}:publish_${ORTOOLS_DELIVERY}..." | tee -a "${ROOT_DIR}/publish.log"
-  docker buildx build \
+  docker buildx build --platform linux/amd64 \
     --tag "${ORTOOLS_IMG}":"publish_${ORTOOLS_DELIVERY}" \
     --build-arg ORTOOLS_GIT_BRANCH="${ORTOOLS_BRANCH}" \
     --build-arg ORTOOLS_GIT_SHA1="${ORTOOLS_SHA1}" \
diff --git a/tools/release/publish_delivery_manylinux_arm64.sh b/tools/release/publish_delivery_manylinux_arm64.sh
index 653b0b89a4..3c5f648853 100755
--- a/tools/release/publish_delivery_manylinux_arm64.sh
+++ b/tools/release/publish_delivery_manylinux_arm64.sh
@@ -70,7 +70,7 @@ function publish_delivery() {
 
   # Publish delivery
   echo -n "Build ${ORTOOLS_IMG}:publish_${ORTOOLS_DELIVERY}..." | tee -a "${ROOT_DIR}/publish.log"
-  docker buildx build \
+  docker buildx build --platform linux/arm64 \
     --tag "${ORTOOLS_IMG}":"publish_${ORTOOLS_DELIVERY}" \
     --build-arg ORTOOLS_GIT_BRANCH="${ORTOOLS_BRANCH}" \
     --build-arg ORTOOLS_GIT_SHA1="${ORTOOLS_SHA1}" \