diff --git a/website/Gemfile.lock b/website/Gemfile.lock
index be132441487e..592986d1d5fc 100644
--- a/website/Gemfile.lock
+++ b/website/Gemfile.lock
@@ -125,7 +125,7 @@ GEM
     mime-types-data (3.2016.0521)
     mini_portile2 (2.1.0)
     minitest (5.9.1)
-    multi_json (1.12.1)
+    multi_json (1.13.1)
     nokogiri (1.6.8)
       mini_portile2 (~> 2.1.0)
       pkg-config (~> 1.1.7)
@@ -136,7 +136,7 @@ GEM
     padrino-support (0.12.8.1)
       activesupport (>= 3.1)
     pkg-config (1.1.7)
-    rack (1.6.4)
+    rack (1.6.11)
     rack-contrib (1.4.0)
       git-version-bump (~> 0.15)
       rack (~> 1.4)
@@ -155,7 +155,7 @@ GEM
     ref (2.0.0)
     rouge (1.11.1)
     sass (3.4.22)
-    sprockets (2.12.4)
+    sprockets (2.12.5)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)