diff --git a/.travis.yml b/.travis.yml
index 2e3204a..3ee1346 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,14 +22,9 @@ matrix:
   include:
     - php: 7.0
       env: COMPOSER_FLAGS="--prefer-lowest"
-    - php: 7.1
-      env: SF_4="true"
 
 before_install:
     - phpenv config-rm xdebug.ini
-    - if [ "$SF_4" == "true" ]; then composer config minimum-stability dev; fi
-    - if [ "$SF_4" == "true" ]; then composer require symfony/symfony:4.0.* --dev --no-update; fi
-    - if [ "$SF_4" == "true" ]; then composer require jms/serializer-bundle:dev-master --dev --no-update; fi
 
 install: composer update $COMPOSER_FLAGS --prefer-stable