diff --git a/Gemfile.lock b/Gemfile.lock
index 9f8075c..7343fda 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,7 +10,7 @@ GEM
       json
     excon (0.39.3)
     highline (1.6.21)
-    json (1.8.1)
+    json (2.3.1)
 
 PLATFORMS
   ruby