diff --git a/.travis.yml b/.travis.yml
index f4f192a..bd5fb5d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,9 +11,6 @@ cache:
 matrix:
     fast_finish: true
     include:
-        - name: 'Unit tests on PHP 7.1'
-          php: '7.1'
-          env: CMD='composer test' MYSQL_DATABASE_URL='mysql://root@localhost/testdb'
         - name: 'Unit tests on PHP 7.3'
           php: '7.3'
           env: CMD='composer test' MYSQL_DATABASE_URL='mysql://root@localhost/testdb'
diff --git a/composer.json b/composer.json
index 3b00ae2..2d557fa 100644
--- a/composer.json
+++ b/composer.json
@@ -4,12 +4,12 @@
     "type": "ezplatform-bundle",
     "license": "GPL-2.0-only",
     "require": {
-        "php": "^7.1",
-        "symfony/http-kernel": "^3.4",
-        "symfony/yaml": "^3.4",
+        "php": "^7.3",
         "doctrine/dbal": "^2.9",
-        "symfony/dependency-injection": "^3.4",
-        "symfony/config": "^3.4"
+        "symfony/config": "^4.3",
+        "symfony/dependency-injection": "^4.3",
+        "symfony/http-kernel": "^4.3",
+        "symfony/yaml": "^4.3"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^2.14",