diff --git a/travis/setup-phpbb.sh b/travis/setup-phpbb.sh
index 82cec22058..daa71bd8aa 100755
--- a/travis/setup-phpbb.sh
+++ b/travis/setup-phpbb.sh
@@ -40,9 +40,7 @@ cd phpBB
 php ../composer.phar install --dev --no-interaction
 if [ "$TRAVIS_PHP_VERSION" == "nightly" ]
 then
-	php ../composer.phar config minimum-stability dev \
-	&& php ../composer.phar config prefer-stable true \
-	&& php ../composer.phar remove phpunit/dbunit --dev --update-with-dependencies \
-	&& php ../composer.phar require symfony/yaml:~4.4 misantron/dbunit:~5.0 phpunit/phpunit:^9.3 --dev --update-with-dependencies --ignore-platform-reqs
+	php ../composer.phar remove phpunit/dbunit --dev --update-with-dependencies \
+	&& php ../composer.phar require misantron/dbunit:~5.0 phpunit/phpunit:^9.3 --dev --update-with-dependencies --ignore-platform-reqs
 fi
 cd ..