diff --git a/db/migrate/20240216103644_add_on_cascade_delete_on_comments.rb b/db/migrate/20240216103644_add_on_cascade_delete_on_comments.rb
new file mode 100644
index 00000000..bb3d69ab
--- /dev/null
+++ b/db/migrate/20240216103644_add_on_cascade_delete_on_comments.rb
@@ -0,0 +1,6 @@
+class AddOnCascadeDeleteOnComments < ActiveRecord::Migration[7.0]
+  def change
+    remove_foreign_key :comments, :users
+    add_foreign_key :comments, :users, on_delete: :nullify
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index e3791c80..fb75efdf 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2023_09_14_120530) do
+ActiveRecord::Schema[7.0].define(version: 2024_02_16_103644) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -218,7 +218,7 @@
   add_foreign_key "answers", "pias"
   add_foreign_key "attachments", "pias"
   add_foreign_key "comments", "pias"
-  add_foreign_key "comments", "users"
+  add_foreign_key "comments", "users", on_delete: :nullify
   add_foreign_key "evaluations", "pias"
   add_foreign_key "knowledges", "knowledge_bases"
   add_foreign_key "measures", "pias"