diff --git a/Gemfile.lock b/Gemfile.lock
index ac8eb43..2b98544 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -51,9 +51,9 @@ GEM
       mime-types (>= 1.16, < 3)
     mime-types (2.4.3)
     minitest (5.5.1)
-    multi_json (1.10.1)
+    multi_json (1.14.0)
     pg (0.18.1)
-    rack (1.5.2)
+    rack (1.5.5)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.1.6)
@@ -89,7 +89,7 @@ GEM
       json (~> 1.7, >= 1.7.7)
       rdoc (~> 4.0)
     spring (1.3.3)
-    sprockets (2.12.3)
+    sprockets (2.12.5)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)