diff --git a/Gemfile.lock b/Gemfile.lock
index c42adbf..e9ea7c8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -92,7 +92,7 @@ GEM
       childprocess (>= 0.2.3)
       guard (>= 1.1)
       spork (>= 0.8.4)
-    hike (1.2.1)
+    hike (1.2.3)
     i18n (0.6.1)
     journey (1.0.4)
     jquery-rails (2.1.4)
@@ -110,7 +110,7 @@ GEM
       treetop (~> 1.4.8)
     method_source (0.8.1)
     mime-types (1.19)
-    multi_json (1.5.0)
+    multi_json (1.14.0)
     nokogiri (1.5.6)
     pg (0.12.2)
     polyglot (0.3.3)
@@ -118,7 +118,7 @@ GEM
       coderay (~> 1.0.5)
       method_source (~> 0.8)
       slop (~> 3.3.1)
-    rack (1.4.3)
+    rack (1.4.7)
     rack-cache (1.2)
       rack (>= 0.4)
     rack-ssl (1.3.2)
@@ -170,14 +170,14 @@ GEM
       rubyzip
     slop (3.3.3)
     spork (0.9.2)
-    sprockets (2.2.2)
+    sprockets (2.2.3)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
     sqlite3 (1.3.5)
     thor (0.16.0)
-    tilt (1.3.3)
+    tilt (1.4.1)
     treetop (1.4.12)
       polyglot
       polyglot (>= 0.3.1)