diff --git a/Gemfile.lock b/Gemfile.lock
index a4924d0..578d1f4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -56,9 +56,9 @@ GEM
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mime-types (1.25.1)
-    multi_json (1.8.2)
+    multi_json (1.14.1)
     polyglot (0.3.3)
-    rack (1.4.5)
+    rack (1.4.7)
     rack-cache (1.2)
       rack (>= 0.4)
     rack-ssl (1.3.3)
@@ -93,7 +93,7 @@ GEM
       rspec-support (= 3.0.0.beta1)
     rspec-mocks (3.0.0.beta1)
     rspec-support (3.0.0.beta1)
-    sprockets (2.2.2)
+    sprockets (2.2.3)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)