diff --git a/composer.json b/composer.json
index 8d1490c..fd46253 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
     "require": {
         "php": ">=5.5.0",
         "ext-mongodb": "*",
-        "mongodb/mongodb": ">=1.1.1 <1.3"
+        "mongodb/mongodb": ">=1.1.1 <1.4"
     },
     "require-dev": {
         "phpunit/phpunit": "~4.6.0"