diff --git a/coin/provisioning/qtci-linux-Debian-11.6-aarch64/30-install_icu.sh b/coin/provisioning/qtci-linux-Debian-11.6-aarch64/30-install_icu.sh
new file mode 100755
index 00000000..9343eae0
--- /dev/null
+++ b/coin/provisioning/qtci-linux-Debian-11.6-aarch64/30-install_icu.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+# shellcheck source=../common/unix/DownloadURL.sh
+source "${BASH_SOURCE%/*}/../common/unix/DownloadURL.sh"
+
+set -ex
+
+# This script will install ICU
+
+icuVersion="73.2"
+icuLocationLib="/usr/local"
+sha1="84b4acc6062a75d795e272d222cc682cd2f33cdd"
+
+sha1Dev="94c27ce0c7cbd310e7746d08f54bb7318e297c31"
+develPackageURL="http://ci-files01-hki.ci.qt.io/input/icu/$icuVersion/icu-linux-g++-Debian11.6-aarch64-devel.7z"
+develPackageExternalURL="http://master.qt.io/development_releases/prebuilt/icu/prebuilt/$icuVersion/icu-linux-g++-Debian11.6-aarch64-devel.7z"
+
+echo "Installing custom ICU $icuVersion $sha1 packages on Debian to $icuLocationLib"
+
+tempDir=$(mktemp -d)
+
+targetFile=$(mktemp)
+DownloadURL "$develPackageURL" "$develPackageExternalURL" "$sha1Dev" "$targetFile"
+7z x -y -o"$tempDir" "$targetFile"
+
+sudo cp -a "$tempDir"/* "$icuLocationLib"
+
+sudo rm "$targetFile"
+sudo rm -fr "$tempDir"
+
+sudo /sbin/ldconfig
+
+echo "ICU = $icuVersion" >> ~/versions.txt