diff --git a/composer.json b/composer.json
index 65c54a4..e66264e 100644
--- a/composer.json
+++ b/composer.json
@@ -14,8 +14,8 @@
 
     "require": {
         "php":          ">=5.3.2",
-        "behat/behat":  "dev-develop",
-        "behat/mink":   "1.4.0.x-dev"
+        "behat/behat":  ">=2.4.0,<2.4.x-dev",
+        "behat/mink":   ">=1.4.0,<1.4.x-dev"
     },
 
     "require-dev": {