diff --git a/Gemfile.lock b/Gemfile.lock
index 66dfdbd..5836431 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -104,7 +104,7 @@ GEM
     mime-types (1.23)
     mini_portile (0.5.0)
     minitest (4.7.5)
-    multi_json (1.7.7)
+    multi_json (1.14.1)
     nokogiri (1.6.0)
       mini_portile (~> 0.5.0)
     pg (0.15.1)
@@ -119,7 +119,7 @@ GEM
       slop (~> 3.4)
     pry-rails (0.3.2)
       pry (>= 0.9.10)
-    rack (1.5.2)
+    rack (1.5.5)
     rack-test (0.6.2)
       rack (>= 1.0)
     rails (4.0.0)
@@ -154,7 +154,7 @@ GEM
       sass (>= 3.1.10)
       sprockets-rails (~> 2.0.0)
     slop (3.5.0)
-    sprockets (2.10.0)
+    sprockets (2.12.5)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)