diff --git a/composer.json b/composer.json
index 4528b72..2a926d6 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
     ],
     "require": {
         "php" : "^5.6 || ^7.0",
-        "doctrine/dbal": ">=2.3,<2.7-dev"
+        "doctrine/dbal": "^2.3"
     },
     "require-dev": {
         "phpunit/phpunit": "^5.4.3 || ^6.0",