bundle update rails

Gemfile

@@ -6,7 +6,7 @@ gem "rails", "~>2.3.15"
 gem "highline", "~>1.5.0"
 gem "RedCloth", "4.2.8"
 gem "sanitize", "~>1.2.1"
-gem "rack", "1.1.0"
+gem "rack", "~>1.1"
 gem "will_paginate", "~> 2.3.15"
 gem "has_many_polymorphs", "~> 2.13", :path => "vendor/gems/has_many_polymorphs-2.13" # vendorred to get rid of some deprecation warnings
 gem "acts_as_list", "= 0.1.4"

Gemfile.lock

@@ -16,16 +16,16 @@ GEM
     RedCloth (4.2.8)
     ZenTest (4.8.3)
     aasm (2.2.1)
-    actionmailer (2.3.14)
-      actionpack (= 2.3.14)
-    actionpack (2.3.14)
-      activesupport (= 2.3.14)
-      rack (~> 1.1.0)
-    activerecord (2.3.14)
-      activesupport (= 2.3.14)
-    activeresource (2.3.14)
-      activesupport (= 2.3.14)
-    activesupport (2.3.14)
+    actionmailer (2.3.15)
+      actionpack (= 2.3.15)
+    actionpack (2.3.15)
+      activesupport (= 2.3.15)
+      rack (~> 1.1.3)
+    activerecord (2.3.15)
+      activesupport (= 2.3.15)
+    activeresource (2.3.15)
+      activesupport (= 2.3.15)
+    activesupport (2.3.15)
     acts_as_list (0.1.4)
     addressable (2.3.2)
     bcrypt-ruby (2.1.4)
@@ -85,15 +85,15 @@ GEM
     mysql (2.9.0)
     nokogiri (1.4.7)
     polyglot (0.3.3)
-    rack (1.1.0)
+    rack (1.1.4)
     rack-test (0.6.2)
       rack (>= 1.0)
-    rails (2.3.14)
-      actionmailer (= 2.3.14)
-      actionpack (= 2.3.14)
-      activerecord (= 2.3.14)
-      activeresource (= 2.3.14)
-      activesupport (= 2.3.14)
+    rails (2.3.15)
+      actionmailer (= 2.3.15)
+      actionpack (= 2.3.15)
+      activerecord (= 2.3.15)
+      activeresource (= 2.3.15)
+      activesupport (= 2.3.15)
       rake (>= 0.8.3)
     rake (0.8.7)
     rbx-require-relative (0.0.9)
@@ -159,8 +159,8 @@ DEPENDENCIES
   memory_test_fix (~> 0.1.3)
   mongrel
   mysql
-  rack (= 1.1.0)
-  rails (~> 2.3.12)
+  rack (~> 1.1)
+  rails (~> 2.3.15)
   rake (~> 0.8.7)
   rspec-rails (~> 1.3.3)
   ruby-debug