diff --git a/changelog.d/legacy-sequences.fix b/changelog.d/legacy-sequences.fix
new file mode 100644
index 000000000..0ecd4842d
--- /dev/null
+++ b/changelog.d/legacy-sequences.fix
@@ -0,0 +1 @@
+Delete legacy Postgres sequences for activities, chats, and users which were converted to Flake IDs
diff --git a/priv/repo/migrations/20260824214955_delete_legacy_id_sequences.exs b/priv/repo/migrations/20260824214955_delete_legacy_id_sequences.exs
new file mode 100644
index 000000000..bad9d5f7a
--- /dev/null
+++ b/priv/repo/migrations/20260824214955_delete_legacy_id_sequences.exs
@@ -0,0 +1,9 @@
+defmodule Pleroma.Repo.Migrations.DeleteLegacyIdSequences do
+  use Ecto.Migration
+
+  def change do
+    execute("DROP SEQUENCE IF EXISTS activities_id_seq")
+    execute("DROP SEQUENCE IF EXISTS chats_id_seq")
+    execute("DROP SEQUENCE IF EXISTS users_id_seq")
+  end
+end