diff --git a/activemodel/MIT-LICENSE b/activemodel/MIT-LICENSE
index 8573eb1225..ac810e86d0 100644
--- a/activemodel/MIT-LICENSE
+++ b/activemodel/MIT-LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2004-2016 David Heinemeier Hansson
+Copyright (c) 2004-2017 David Heinemeier Hansson
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
diff --git a/activemodel/lib/active_model.rb b/activemodel/lib/active_model.rb
index a9b0663940..8163856a46 100644
--- a/activemodel/lib/active_model.rb
+++ b/activemodel/lib/active_model.rb
@@ -1,5 +1,5 @@
 #--
-# Copyright (c) 2004-2016 David Heinemeier Hansson
+# Copyright (c) 2004-2017 David Heinemeier Hansson
 #
 # Permission is hereby granted, free of charge, to any person obtaining
 # a copy of this software and associated documentation files (the