diff --git a/Gemfile.lock b/Gemfile.lock
index 6906f7f..b51799d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -80,7 +80,7 @@ GEM
       treetop (~> 1.4.8)
     mime-types (1.25.1)
     mini_portile (0.6.0)
-    multi_json (1.10.1)
+    multi_json (1.14.1)
     multi_xml (0.5.5)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
@@ -88,7 +88,7 @@ GEM
     nokogiri (1.6.2.1)
       mini_portile (= 0.6.0)
     polyglot (0.3.5)
-    rack (1.4.5)
+    rack (1.4.7)
     rack-cache (1.2)
       rack (>= 0.4)
     rack-ssl (1.3.4)
@@ -120,7 +120,7 @@ GEM
       railties (~> 3.2.0)
       sass (>= 3.1.10)
       tilt (~> 1.3)
-    sprockets (2.2.2)
+    sprockets (2.2.3)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)