diff --git a/.ci-make.sh b/.ci-make.sh
index d4062f4..03192ef 100755
--- a/.ci-make.sh
+++ b/.ci-make.sh
@@ -143,8 +143,10 @@ case "$1" in
 		exit $?
 		;;
 	"forgejo-test-deps")
+		echo "deb http://deb.debian.org/debian/ bookworm-backports main contrib" > /etc/apt/sources.list.d/backports.list
 		apt update
-		apt install --no-install-recommends -y git-lfs golang
+		apt install --no-install-recommends -y git-lfs
+		apt install -y -t bookworm-backports golang-1.20
 		adduser --quiet --comment forgejo --disabled-password forgejo
 		chown -R forgejo:forgejo .
 		;;