diff --git a/composer.json b/composer.json
index 7160c6d..e8e8f9c 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,8 @@
     ] ,
     "require":
     {
-        "php": ">=5.3.0"
+        "php": ">=5.3.0",
+        "ext-curl": "*"
     },
     "require-dev":
     {