diff --git a/Build/Scripts/runTests.sh b/Build/Scripts/runTests.sh
index 99b6a60..f237c9e 100755
--- a/Build/Scripts/runTests.sh
+++ b/Build/Scripts/runTests.sh
@@ -546,7 +546,7 @@ case ${TEST_SUITE} in
         ;;
     functional)
         [ -z "${TEST_FILE}" ] && TEST_FILE="Tests/Functional"
-        COMMAND=".Build/bin/phpunit -c Build/phpunit/FunctionalTests.xml --exclude-group not-${DBMS} ${EXTRA_TEST_OPTIONS} ${TEST_FILE}"
+        COMMAND=".Build/bin/paratest -c Build/phpunit/FunctionalTests.xml --exclude-group not-${DBMS} ${EXTRA_TEST_OPTIONS} ${TEST_FILE}"
         case ${DBMS} in
             mariadb)
                 echo "Using driver: ${DATABASE_DRIVER}"
@@ -574,6 +574,7 @@ case ${TEST_SUITE} in
             sqlite)
                 CONTAINERPARAMS="-e typo3DatabaseDriver=pdo_sqlite"
                 ${CONTAINER_BIN} run ${CONTAINER_COMMON_PARAMS} --name functional-${SUFFIX} ${XDEBUG_MODE} -e XDEBUG_CONFIG="${XDEBUG_CONFIG}" ${CONTAINERPARAMS} ${IMAGE_PHP} ${COMMAND}
+                echo "{CONTAINER_BIN} run ${CONTAINER_COMMON_PARAMS} --name functional-${SUFFIX} ${XDEBUG_MODE} -e XDEBUG_CONFIG=\"${XDEBUG_CONFIG}\" ${CONTAINERPARAMS} ${IMAGE_PHP} ${COMMAND}"
                 SUITE_EXIT_CODE=$?
                 ;;
         esac
diff --git a/composer.json b/composer.json
index 50dc306..1658aec 100644
--- a/composer.json
+++ b/composer.json
@@ -47,6 +47,7 @@
 		"typo3/cms-frontend": "^11.5.4 || ^12.4.2"
 	},
 	"require-dev": {
+		"brianium/paratest": "^6.11.1",
 		"ergebnis/composer-normalize": "^2.43.0",
 		"friendsofphp/php-cs-fixer": "^3.64.0",
 		"helmich/typo3-typoscript-lint": "^3.1.1",
@@ -164,7 +165,7 @@
 		"ci:tests:create-directories": "mkdir -p .Build/public/typo3temp/var/tests",
 		"ci:tests:functional": [
 			"@ci:tests:create-directories",
-			"find 'Tests/Functional' -wholename '*Test.php' | parallel --gnu 'echo; echo \\\"Running functional test suite {}\\\"; .Build/bin/phpunit -c Build/phpunit/FunctionalTests.xml {}';"
+			"paratest -c Build/phpunit/FunctionalTests.xml Tests/Functional"
 		],
 		"ci:tests:unit": "phpunit -c Build/phpunit/UnitTests.xml Tests/Unit",
 		"ci:typoscript:lint": "typoscript-lint -c Configuration/TsLint.yml --ansi -n --fail-on-warnings -vvv Configuration/TypoScript",