diff --git a/Gemfile.lock b/Gemfile.lock
index 59f1974..7478587 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: http://rubygems.org/
   specs:
-    activesupport (4.1.10)
+    activesupport (4.1.16)
       i18n (~> 0.6, >= 0.6.9)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
@@ -60,7 +60,7 @@ GEM
     htmlcompressor (0.1.2)
     http_parser.rb (0.6.0)
     i18n (0.7.0)
-    json (1.8.2)
+    json (1.8.6)
     kramdown (1.6.0)
     libv8 (3.16.14.7)
     listen (2.9.0)
@@ -109,7 +109,7 @@ GEM
       sprockets (~> 2.12.1)
       sprockets-helpers (~> 1.1.0)
       sprockets-sass (~> 1.3.0)
-    minitest (5.5.1)
+    minitest (5.17.0)
     multi_json (1.11.0)
     nenv (0.2.0)
     notiffany (0.0.6)
@@ -158,11 +158,11 @@ GEM
       libv8 (~> 3.16.14.0)
       ref
     thor (0.19.1)
-    thread_safe (0.3.5)
+    thread_safe (0.3.6)
     tilt (1.4.1)
     timers (4.0.1)
       hitimes
-    tzinfo (1.2.2)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     uber (0.0.13)
     uglifier (2.7.1)