diff --git a/ci/test/00_setup_env_mac_cross.sh b/ci/test/00_setup_env_mac_cross.sh
index 088b853e8e8..027741dab4e 100755
--- a/ci/test/00_setup_env_mac_cross.sh
+++ b/ci/test/00_setup_env_mac_cross.sh
@@ -9,7 +9,7 @@ export LC_ALL=C.UTF-8
 export SDK_URL=${SDK_URL:-https://bitcoincore.org/depends-sources/sdks}
 
 export CONTAINER_NAME=ci_macos_cross
-export CI_IMAGE_NAME_TAG="mirror.gcr.io/ubuntu:24.04"
+export CI_IMAGE_NAME_TAG="mirror.gcr.io/debian:trixie" # Check that https://packages.debian.org/trixie/clang (version 19, similar to guix) can cross-compile
 export HOST=arm64-apple-darwin
 export PACKAGES="clang lld llvm zip"
 export XCODE_VERSION=15.0
diff --git a/ci/test/00_setup_env_mac_cross_intel.sh b/ci/test/00_setup_env_mac_cross_intel.sh
index a158ffa22f9..535b801bf56 100755
--- a/ci/test/00_setup_env_mac_cross_intel.sh
+++ b/ci/test/00_setup_env_mac_cross_intel.sh
@@ -9,7 +9,7 @@ export LC_ALL=C.UTF-8
 export SDK_URL=${SDK_URL:-https://bitcoincore.org/depends-sources/sdks}
 
 export CONTAINER_NAME=ci_macos_cross_intel
-export CI_IMAGE_NAME_TAG="mirror.gcr.io/ubuntu:24.04"
+export CI_IMAGE_NAME_TAG="mirror.gcr.io/debian:trixie" # Check that https://packages.debian.org/trixie/clang (version 19, similar to guix) can cross-compile
 export HOST=x86_64-apple-darwin
 export PACKAGES="clang lld llvm zip"
 export XCODE_VERSION=15.0