diff --git a/composer.json b/composer.json
index c5dbe738..92f00d05 100644
--- a/composer.json
+++ b/composer.json
@@ -34,6 +34,8 @@
         "branch-alias": {
             "dev-master": "3.1.x-dev"
         }
+    },
+    "require-dev": {
+        "smarty/smarty-dev": "~3.1@dev"
     }
-
 }