diff --git a/lib/nulla/models/activity.ex b/lib/nulla/models/activity.ex
index d09bb89..44e21bb 100644
--- a/lib/nulla/models/activity.ex
+++ b/lib/nulla/models/activity.ex
@@ -11,6 +11,8 @@ defmodule Nulla.Models.Activity do
     field :type, :string
     field :actor, :string
     field :object, :string
+    field :to, :string
+    field :cc, :string
 
     timestamps()
   end
@@ -18,7 +20,7 @@ defmodule Nulla.Models.Activity do
   @doc false
   def changeset(activity, attrs) do
     activity
-    |> cast(attrs, [:ap_id, :type, :actor, :object])
+    |> cast(attrs, [:ap_id, :type, :actor, :object, :to, :cc])
     |> validate_required([:ap_id, :type, :actor, :object])
     |> validate_inclusion(:type, ~w(Create Update Delete Undo Like Announce Follow Accept Reject))
   end
diff --git a/priv/repo/migrations/20250615131856_create_activities.exs b/priv/repo/migrations/20250615131856_create_activities.exs
index 965df8f..9d95372 100644
--- a/priv/repo/migrations/20250615131856_create_activities.exs
+++ b/priv/repo/migrations/20250615131856_create_activities.exs
@@ -8,6 +8,8 @@ defmodule Nulla.Repo.Migrations.CreateActivities do
       add :type, :string, null: false
       add :actor, :string, null: false
       add :object, :text, null: false
+      add :to, :text
+      add :cc, :text
 
       timestamps()
     end