diff --git a/README.md b/README.md
index 10fde30..5664906 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Requirements
 ------------
 * Ruby >= 2.0.0
 * rest-client >= 2.1.0
-* json >= 1.8.3
+* json >= 2.3.0
 
 Installation with gem
 ---------------------