diff --git a/Gemfile.lock b/Gemfile.lock
index 5254f1cf18f..3c44c31696c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -194,7 +194,7 @@ GEM
     fast_xs (0.8.0)
     fastimage (1.3.0)
     ffi (1.8.1)
-    flamegraph (0.0.2)
+    flamegraph (0.0.3)
       fast_stack
     fog (1.14.0)
       builder
diff --git a/Gemfile_rails4.lock b/Gemfile_rails4.lock
index 4d0cc131202..6e4e48e639f 100644
--- a/Gemfile_rails4.lock
+++ b/Gemfile_rails4.lock
@@ -33,7 +33,7 @@ GIT
 
 GIT
   remote: git://github.com/rails/rails.git
-  revision: 025b63db308fbbf942a3bc2673d4aadab968c524
+  revision: 08376d3796482fefcd03ad1d7e0bcce0df4c9913
   branch: 4-0-stable
   specs:
     actionmailer (4.0.0)
@@ -173,7 +173,7 @@ GEM
       activesupport
       builder
     arel (4.0.0)
-    atomic (1.1.13)
+    atomic (1.1.14)
     barber (0.4.2)
       ember-source
       execjs
@@ -222,7 +222,7 @@ GEM
     fast_xs (0.8.0)
     fastimage (1.5.0)
     ffi (1.9.0)
-    flamegraph (0.0.2)
+    flamegraph (0.0.3)
       fast_stack
     fog (1.14.0)
       builder
@@ -278,7 +278,7 @@ GEM
     mocha (0.14.0)
       metaclass (~> 0.0.1)
     mock_redis (0.8.1)
-    multi_json (1.7.9)
+    multi_json (1.8.0)
     multipart-post (1.2.0)
     mustache (0.99.4)
     net-scp (1.1.2)
@@ -447,7 +447,7 @@ GEM
       eventmachine (>= 0.12.6)
       rack (>= 1.0.0)
     thor (0.18.1)
-    thread_safe (0.1.2)
+    thread_safe (0.1.3)
       atomic
     tilt (1.4.1)
     timecop (0.6.2.2)