diff --git a/app/controllers/posts_controller.rb b/app/controllers/posts_controller.rb
index 282a784a..8b103422 100644
--- a/app/controllers/posts_controller.rb
+++ b/app/controllers/posts_controller.rb
@@ -117,7 +117,7 @@ class PostsController < ApplicationController
     service = PostService.new(site: site,
                               usuarie: current_usuarie,
                               params: params)
-    @post = service.create
+    @post = service.create_or_update
 
     if post.persisted?
       site.touch
diff --git a/app/services/post_service.rb b/app/services/post_service.rb
index 3045bd9c..bb49c5bd 100644
--- a/app/services/post_service.rb
+++ b/app/services/post_service.rb
@@ -3,6 +3,26 @@
 # Este servicio se encarga de crear artículos y guardarlos en git,
 # asignándoselos a une usuarie
 PostService = Struct.new(:site, :usuarie, :post, :params, keyword_init: true) do
+
+  # Si estamos pasando el UUID con los parámetros, el post quizás
+  # existe.
+  #
+  # @return [Post]
+  def create_or_update
+    uuid = params.require(base).permit(:uuid).values.first
+
+    binding.pry
+
+    if uuid.blank?
+      create
+    elsif (indexed_post = site.indexed_posts.find_by(post_id: uuid)).present?
+      self.post = indexed_post.post
+      update
+    else
+      create
+    end
+  end
+
   # Crea un artículo nuevo
   #
   # @return Post