diff --git a/app/models/post.rb b/app/models/post.rb
index 0123a80..a0e1670 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -348,6 +348,8 @@ class Post
 
   def update_attributes(hashable)
     hashable.to_hash.each do |attr, value|
+      next unless self[attr].writable?
+
       self[attr].value = value
     end
 
@@ -378,9 +380,7 @@ class Post
 
   # Ejecuta la acción de guardado en cada atributo.
   def save_attributes!
-    attributes.select do |attr|
-      self[attr].writable?
-    end.map do |attr|
+    attributes.map do |attr|
       self[attr].save
     end.all?
   end