diff --git a/Gemfile.lock b/Gemfile.lock
index 6d96f33..18cdc7e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -52,7 +52,7 @@ GEM
     execjs (1.4.0)
       multi_json (~> 1.0)
     ffi (1.1.5)
-    hike (1.2.1)
+    hike (1.2.3)
     i18n (0.6.0)
     journey (1.0.4)
     jquery-rails (2.0.2)
@@ -70,7 +70,7 @@ GEM
     nokogiri (1.5.5)
     pg (0.12.2)
     polyglot (0.3.3)
-    rack (1.4.1)
+    rack (1.4.7)
     rack-cache (1.2)
       rack (>= 0.4)
     rack-ssl (1.3.2)
@@ -119,13 +119,13 @@ GEM
       libwebsocket (~> 0.1.3)
       multi_json (~> 1.0)
       rubyzip
-    sprockets (2.1.3)
+    sprockets (2.1.4)
       hike (~> 1.2)
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
     sqlite3 (1.3.5)
     thor (0.15.4)
-    tilt (1.3.3)
+    tilt (1.4.1)
     treetop (1.4.10)
       polyglot
       polyglot (>= 0.3.1)