diff --git a/Gemfile.lock b/Gemfile.lock
index 8976513..36efeb9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -14,9 +14,9 @@ GEM
       multi_json (~> 1.0)
     fssm (0.2.9)
     haml (3.1.7)
-    hike (1.2.1)
-    multi_json (1.5.0)
-    rack (1.4.1)
+    hike (1.2.3)
+    multi_json (1.14.1)
+    rack (1.6.13)
     rack-protection (1.2.0)
       rack
     sass (3.2.1)
@@ -24,7 +24,7 @@ GEM
       rack (~> 1.3, >= 1.3.6)
       rack-protection (~> 1.2)
       tilt (~> 1.3, >= 1.3.3)
-    sprockets (2.8.2)
+    sprockets (2.12.5)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)
@@ -32,7 +32,7 @@ GEM
     sprockets-sass (0.9.1)
       sprockets (~> 2.0)
       tilt (~> 1.1)
-    tilt (1.3.3)
+    tilt (1.4.1)
 
 PLATFORMS
   ruby