diff --git a/openspec/changes/unify-bill-list-ui/.openspec.yaml b/openspec/changes/archive/2026-02-19-unify-bill-list-ui/.openspec.yaml similarity index 100% rename from openspec/changes/unify-bill-list-ui/.openspec.yaml rename to openspec/changes/archive/2026-02-19-unify-bill-list-ui/.openspec.yaml diff --git a/openspec/changes/unify-bill-list-ui/design.md b/openspec/changes/archive/2026-02-19-unify-bill-list-ui/design.md similarity index 100% rename from openspec/changes/unify-bill-list-ui/design.md rename to openspec/changes/archive/2026-02-19-unify-bill-list-ui/design.md diff --git a/openspec/changes/unify-bill-list-ui/proposal.md b/openspec/changes/archive/2026-02-19-unify-bill-list-ui/proposal.md similarity index 100% rename from openspec/changes/unify-bill-list-ui/proposal.md rename to openspec/changes/archive/2026-02-19-unify-bill-list-ui/proposal.md diff --git a/openspec/changes/unify-bill-list-ui/specs/bill-list-unified-ui/spec.md b/openspec/changes/archive/2026-02-19-unify-bill-list-ui/specs/bill-list-unified-ui/spec.md similarity index 100% rename from openspec/changes/unify-bill-list-ui/specs/bill-list-unified-ui/spec.md rename to openspec/changes/archive/2026-02-19-unify-bill-list-ui/specs/bill-list-unified-ui/spec.md diff --git a/openspec/changes/unify-bill-list-ui/tasks.md b/openspec/changes/archive/2026-02-19-unify-bill-list-ui/tasks.md similarity index 100% rename from openspec/changes/unify-bill-list-ui/tasks.md rename to openspec/changes/archive/2026-02-19-unify-bill-list-ui/tasks.md