diff --git a/composer.json b/composer.json
index a288f8c..01729d1 100755
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
         "ext-curl": "*",
         "ext-json": "*",
         "ext-mbstring": "*",
-        "apimatic/unirest-php": "dev-master"
+        "apimatic/unirest-php": "~1.3"
     },
     "autoload": {
         "psr-4": {