diff --git a/lib/pleroma/activity/pruner.ex b/lib/pleroma/activity/pruner.ex
index 7f561ebae..54a40b534 100644
--- a/lib/pleroma/activity/pruner.ex
+++ b/lib/pleroma/activity/pruner.ex
@@ -26,6 +26,15 @@ def prune_undos do
     |> Repo.delete_all(timeout: :infinity)
   end
 
+  def prune_updates do
+    before_time = cutoff()
+
+    from(a in Activity,
+      where: fragment("?->>'type' = ?", a.data, "Update") and a.inserted_at < ^before_time
+    )
+    |> Repo.delete_all(timeout: :infinity)
+  end
+
   def prune_removes do
     before_time = cutoff()
 
diff --git a/lib/pleroma/workers/cron/database_prune_worker.ex b/lib/pleroma/workers/cron/database_prune_worker.ex
index 58995c69a..ced4b27b7 100644
--- a/lib/pleroma/workers/cron/database_prune_worker.ex
+++ b/lib/pleroma/workers/cron/database_prune_worker.ex
@@ -21,6 +21,9 @@ def perform(_job) do
     Logger.info("Pruning old undos")
     ActivityPruner.prune_undos()
 
+    Logger.info("Pruning old updates")
+    ActivityPruner.prune_updates()
+
     Logger.info("Pruning old removes")
     ActivityPruner.prune_removes()
 
diff --git a/test/pleroma/activity/pruner_test.exs b/test/pleroma/activity/pruner_test.exs
index e8d4b30aa..26db60c1c 100644
--- a/test/pleroma/activity/pruner_test.exs
+++ b/test/pleroma/activity/pruner_test.exs
@@ -6,22 +6,52 @@ defmodule Pleroma.Activity.PrunerTest do
 
   import Pleroma.Factory
 
-  describe "prune_deletes" do
-    test "it prunes old delete objects" do
+  describe "prune_transient_activities" do
+    test "it prunes old transient activities" do
       user = insert(:user)
+      old_time = DateTime.utc_now() |> DateTime.add(-31 * 24, :hour)
 
       new_delete = insert(:delete_activity, type: "Delete", user: user)
 
       old_delete =
         insert(:delete_activity,
-          type: "Delete",
           user: user,
-          inserted_at: DateTime.utc_now() |> DateTime.add(-31 * 24, :hour)
+          inserted_at: old_time
         )
 
+      new_update = insert(:update_activity, type: "Update", user: user)
+
+      old_update =
+        insert(:update_activity,
+          type: "Update",
+          user: user,
+          inserted_at: old_time
+        )
+
+      new_undo = insert(:undo_activity)
+
+      old_undo = insert(:undo_activity, inserted_at: old_time)
+
+      new_remove = insert(:remove_activity)
+
+      old_remove = insert(:remove_activity, inserted_at: old_time)
+
       Pruner.prune_deletes()
+      Pruner.prune_updates()
+      Pruner.prune_undos()
+      Pruner.prune_removes()
+
       assert Activity.get_by_id(new_delete.id)
       refute Activity.get_by_id(old_delete.id)
+
+      assert Activity.get_by_id(new_update.id)
+      refute Activity.get_by_id(old_update.id)
+
+      assert Activity.get_by_id(new_undo.id)
+      refute Activity.get_by_id(old_undo.id)
+
+      assert Activity.get_by_id(new_remove.id)
+      refute Activity.get_by_id(old_remove.id)
     end
   end
 
diff --git a/test/support/factory.ex b/test/support/factory.ex
index 321caf1f4..e21b8fc1e 100644
--- a/test/support/factory.ex
+++ b/test/support/factory.ex
@@ -9,6 +9,7 @@ defmodule Pleroma.Factory do
 
   alias Pleroma.Object
   alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.UserView
 
   @rsa_keys [
               "test/fixtures/rsa_keys/key_1.pem",
@@ -554,6 +555,54 @@ def delete_activity_factory(attrs \\ %{}) do
     |> Map.merge(attrs)
   end
 
+  def undo_activity_factory(attrs \\ %{}) do
+    like_activity = attrs[:like_activity] || insert(:like_activity)
+    attrs = Map.drop(attrs, [:like_activity])
+
+    data =
+      %{
+        "id" => Pleroma.Web.ActivityPub.Utils.generate_activity_id(),
+        "type" => "Undo",
+        "actor" => like_activity.data["actor"],
+        "to" => like_activity.data["to"],
+        "object" => like_activity.data["id"],
+        "published" => DateTime.utc_now() |> DateTime.to_iso8601(),
+        "context" => like_activity.data["context"]
+      }
+
+    %Pleroma.Activity{
+      data: data,
+      actor: data["actor"],
+      recipients: data["to"]
+    }
+    |> Map.merge(attrs)
+  end
+
+  def update_activity_factory(attrs \\ %{}) do
+    user = attrs[:user] || insert(:user, nickname: "testuser")
+    attrs = Map.drop(attrs, [:user])
+
+    user_data =
+      UserView.render("user.json", %{user: user})
+      |> Map.merge(%{"name" => "new display name"})
+
+    data = %{
+      "type" => "Update",
+      "to" => [
+        user_data["followers"],
+        "https://www.w3.org/ns/activitystreams#Public"
+      ],
+      "actor" => user_data["id"],
+      "object" => user_data
+    }
+
+    %Pleroma.Activity{
+      actor: user_data["id"],
+      data: data
+    }
+    |> Map.merge(attrs)
+  end
+
   def oauth_app_factory do
     %Pleroma.Web.OAuth.App{
       client_name: sequence(:client_name, &"Some client #{&1}"),