diff --git a/dev/setup/phpunit/setup_conf.sh b/dev/setup/phpunit/setup_conf.sh
index 870f5977bea..c174c7e8d31 100755
--- a/dev/setup/phpunit/setup_conf.sh
+++ b/dev/setup/phpunit/setup_conf.sh
@@ -197,6 +197,7 @@ if [ "$load_cache" != "1" ] ; then
 		VERSIONS+=("5.0.0" "6.0.0" "7.0.0" "8.0.0" "9.0.0")
 		VERSIONS+=("10.0.0" "11.0.0" "12.0.0" "13.0.0" "14.0.0")
 		VERSIONS+=("15.0.0" "16.0.0" "18.0.0" "19.0.0" "20.0.0")
+		VERSIONS+=("21.0.0")
 		pVer=${VERSIONS[0]}
 		for v in "${VERSIONS[@]:1}" ; do
 			LOGNAME="${TRAVIS_BUILD_DIR}/upgrade${pVer//./}${v//./}"