diff --git a/Gemfile.lock b/Gemfile.lock
index 2828595..72c23ff 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,5 +1,5 @@
 GEM
-  remote: http://rubygems.org/
+  remote: https://rubygems.org/
   specs:
     archive-tar-minitar (0.5.2)
     coderay (1.1.0)
@@ -8,7 +8,7 @@ GEM
       excon (>= 0.38.0)
       json
     excon (0.42.1)
-    json (1.8.1)
+    json (2.3.1)
     method_source (0.8.2)
     pry (0.10.1)
       coderay (~> 1.1.0)