diff --git a/RAILS_VERSION b/RAILS_VERSION
index a36db0b333964..a6194cbadf363 100644
--- a/RAILS_VERSION
+++ b/RAILS_VERSION
@@ -1 +1 @@
-3.1.0.rc5
+3.1.0.rc6
diff --git a/actionmailer/lib/action_mailer/version.rb b/actionmailer/lib/action_mailer/version.rb
index 728069be30ee4..6241fccdcb932 100644
--- a/actionmailer/lib/action_mailer/version.rb
+++ b/actionmailer/lib/action_mailer/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 1
     TINY  = 0
-    PRE   = "rc5"
+    PRE   = "rc6"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end
diff --git a/actionpack/lib/action_pack/version.rb b/actionpack/lib/action_pack/version.rb
index 236b0277efde7..538037838ce99 100644
--- a/actionpack/lib/action_pack/version.rb
+++ b/actionpack/lib/action_pack/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 1
     TINY  = 0
-    PRE   = "rc5"
+    PRE   = "rc6"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end
diff --git a/activemodel/lib/active_model/version.rb b/activemodel/lib/active_model/version.rb
index 1292c3c792ebd..6c6e02d675049 100644
--- a/activemodel/lib/active_model/version.rb
+++ b/activemodel/lib/active_model/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 1
     TINY  = 0
-    PRE   = "rc5"
+    PRE   = "rc6"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end
diff --git a/activerecord/lib/active_record/version.rb b/activerecord/lib/active_record/version.rb
index 8b01c852eab26..059200fc56658 100644
--- a/activerecord/lib/active_record/version.rb
+++ b/activerecord/lib/active_record/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 1
     TINY  = 0
-    PRE   = "rc5"
+    PRE   = "rc6"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end
diff --git a/activeresource/lib/active_resource/version.rb b/activeresource/lib/active_resource/version.rb
index 3ea39634a341d..5fbda88eaf712 100644
--- a/activeresource/lib/active_resource/version.rb
+++ b/activeresource/lib/active_resource/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 1
     TINY  = 0
-    PRE   = "rc5"
+    PRE   = "rc6"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end
diff --git a/activesupport/lib/active_support/version.rb b/activesupport/lib/active_support/version.rb
index 06c3fda74cf3b..e38712d47453b 100644
--- a/activesupport/lib/active_support/version.rb
+++ b/activesupport/lib/active_support/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 1
     TINY  = 0
-    PRE   = "rc5"
+    PRE   = "rc6"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end
diff --git a/railties/lib/rails/version.rb b/railties/lib/rails/version.rb
index 462f673f1f55c..c09bdb4596c6e 100644
--- a/railties/lib/rails/version.rb
+++ b/railties/lib/rails/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 1
     TINY  = 0
-    PRE   = "rc5"
+    PRE   = "rc6"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end
diff --git a/version.rb b/version.rb
index 462f673f1f55c..c09bdb4596c6e 100644
--- a/version.rb
+++ b/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 1
     TINY  = 0
-    PRE   = "rc5"
+    PRE   = "rc6"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end