diff --git a/composer.json b/composer.json
index c6260f3d..03623620 100644
--- a/composer.json
+++ b/composer.json
@@ -36,7 +36,7 @@
     "mockery/mockery": "~1.0",
     "codedungeon/phpunit-result-printer": "^0.14.0",
     "php-mock/php-mock": "^2.0",
-    "symfony/var-dumper": "^4.2"
+    "symfony/var-dumper": "~3.3"
   },
   "autoload": {
     "files": [