diff --git a/Gemfile.lock b/Gemfile.lock
index de90b4a..f92bdc8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -95,7 +95,7 @@ GEM
     jquery-rails (2.0.2)
       railties (>= 3.2.0, < 5.0)
       thor (~> 0.14)
-    json (1.7.3)
+    json (1.8.6)
     libv8 (3.3.10.4)
     libwebsocket (0.1.3)
       addressable
@@ -139,7 +139,7 @@ GEM
     rb-fsevent (0.9.1)
     rb-inotify (0.8.8)
       ffi (>= 0.5.0)
-    rdoc (3.12)
+    rdoc (3.12.2)
       json (~> 1.4)
     rest-client (1.6.7)
       mime-types (>= 1.16)
@@ -169,7 +169,6 @@ GEM
       rubyzip
     sendgrid (1.0.1)
       json
-      json
     sprockets (2.1.3)
       hike (~> 1.2)
       rack (~> 1.0)