diff --git a/ci/install-build-deps.sh b/ci/install-build-deps.sh
index 4dc913a8..dda00623 100755
--- a/ci/install-build-deps.sh
+++ b/ci/install-build-deps.sh
@@ -25,6 +25,9 @@ if [ -z "$GITHUB_ACTIONS" ]; then
   GITHUB_PATH=/dev/null
 fi
 
+# Use non-default mirror for Ubuntu packages, because the default mirror currently have problems.
+$SUDO_CMD sed -i -E -e 's!http://(archive|security).ubuntu.com!http://europe-west2.gce.archive.ubuntu.com!g' /etc/apt/sources.list
+
 case "$ID-$VERSION_ID" in
   ubuntu-20.04|ubuntu-22.04)
     # Curl must be available to get the repo key below.