diff --git a/composer.json b/composer.json
index 3251532..73f767b 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
   "require": {
     "php": ">=5.4.0",
     "ext-curl": "0.0.0.*",
-    "ext-json": "~1.3"
+    "ext-json": "~1.2"
   },
   "require-dev": {
     "ext-xdebug": "~2.2",