diff --git a/priv/repo/migrations/20260202170246_change_visual_cascade_delete_in_plugin_manager.exs b/priv/repo/migrations/20260202170246_change_visual_cascade_delete_in_plugin_manager.exs
new file mode 100644
index 0000000..b92fab8
--- /dev/null
+++ b/priv/repo/migrations/20260202170246_change_visual_cascade_delete_in_plugin_manager.exs
@@ -0,0 +1,19 @@
+defmodule Back.Repo.Migrations.ChangeVisualCascadeDeleteInPluginManager do
+  use Ecto.Migration
+
+  def up do
+    drop constraint(:plugin_manager, "plugin_manager_visual_fkey")
+
+    alter table(:plugin_manager) do
+      modify :visual, references(:visuals, on_delete: :delete_all, type: :binary_id)
+    end
+  end
+
+  def down do
+    drop constraint(:plugin_manager, "plugin_manager_visual_fkey")
+
+    alter table(:plugin_manager) do
+      modify :visual, references(:visuals, on_delete: :restrict, type: :binary_id)
+    end
+  end
+end
diff --git a/priv/repo/migrations/20260202172644_change_plugin_cascade_delete_in_plugin_manager.exs b/priv/repo/migrations/20260202172644_change_plugin_cascade_delete_in_plugin_manager.exs
new file mode 100644
index 0000000..568df71
--- /dev/null
+++ b/priv/repo/migrations/20260202172644_change_plugin_cascade_delete_in_plugin_manager.exs
@@ -0,0 +1,27 @@
+defmodule Back.Repo.Migrations.ChangePluginCascadeDeleteInPluginManager do
+  use Ecto.Migration
+
+  def up do
+    execute "ALTER TABLE plugin_manager DROP CONSTRAINT IF EXISTS plugin_manager_automaton_fkey"
+
+    execute """
+    ALTER TABLE plugin_manager
+    ADD CONSTRAINT plugin_manager_automaton_fkey
+    FOREIGN KEY (automaton)
+    REFERENCES automaton(automaton_id)
+    ON DELETE CASCADE
+    """
+  end
+
+  def down do
+    execute "ALTER TABLE plugin_manager DROP CONSTRAINT IF EXISTS plugin_manager_automaton_fkey"
+
+    execute """
+    ALTER TABLE plugin_manager
+    ADD CONSTRAINT plugin_manager_automaton_fkey
+    FOREIGN KEY (automaton)
+    REFERENCES automaton(automaton_id)
+    ON DELETE NO ACTION
+    """
+  end
+end