diff --git a/Gemfile.lock b/Gemfile.lock
index 0806c9b5a..2a3145225 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -141,7 +141,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     columnize (0.8.9)
-    concurrent-ruby (1.1.5)
+    concurrent-ruby (1.1.8)
     connection_pool (2.2.0)
     coveralls (0.7.1)
       multi_json (~> 1.3)
@@ -201,11 +201,11 @@ GEM
     git_pretty_accept (0.3.1)
       git
       methadone (~> 1.3.1)
-    gon (5.2.0)
-      actionpack (>= 2.3.0)
-      json
+    gon (6.4.0)
+      actionpack (>= 3.0.20)
+      i18n (>= 0.7)
       multi_json
-      request_store (>= 1.0.5)
+      request_store (>= 1.0)
     groupdate (2.4.0)
       activesupport (>= 3)
     guard (1.6.2)
@@ -251,7 +251,7 @@ GEM
     jquery-ui-rails (4.1.2)
       railties (>= 3.1.0)
     jslint_on_rails (1.1.1)
-    json (2.2.0)
+    json (2.5.1)
     json_spec (1.1.5)
       multi_json (~> 1.0)
       rspec (>= 2.0, < 4.0)
@@ -475,7 +475,7 @@ GEM
       polyglot
       polyglot (>= 0.3.1)
     ttfunk (1.0.3)
-    tzinfo (0.3.46)
+    tzinfo (0.3.60)
     uglifier (2.7.2)
       execjs (>= 0.3.0)
       json (>= 1.8.0)