diff --git a/jecs.d.ts b/jecs.d.ts
index b347d12..767f068 100755
--- a/jecs.d.ts
+++ b/jecs.d.ts
@@ -321,3 +321,6 @@ export type ComponentRecord = {
 }
 
 export function component_record(world: World, id: Id): ComponentRecord
+
+export function bulk_insert<const C extends Entity[]>(world: World, entity: Entity, ids: C, values: InferComponents<C>): void
+export function bulk_remove(world: World, entity: Entity, ids: Entity[]): void
\ No newline at end of file
diff --git a/jecs.luau b/jecs.luau
index f77f817..d027d8c 100755
--- a/jecs.luau
+++ b/jecs.luau
@@ -2033,7 +2033,7 @@ local function world_children<a>(world: World, parent: Id<a>)
 	return world_each(world, ECS_PAIR(EcsChildOf, parent::number))
 end
 
-local function ecs_bulk_insert(world: World, entity: Entity, ids: { Entity }, values: { any })
+local function ecs_bulk_insert(world: World, entity: Entity, ids: { Id }, values: { any })
 	local entity_index = world.entity_index
 	local r = entity_index_try_get(entity_index, entity)
 	if not r then
@@ -2111,7 +2111,7 @@ local function ecs_bulk_insert(world: World, entity: Entity, ids: { Entity }, va
 	end
 end
 
-local function ecs_bulk_remove(world: World, entity: Entity, ids: { Entity })
+local function ecs_bulk_remove(world: World, entity: Entity, ids: { Id })
 	local entity_index = world.entity_index
 	local r = entity_index_try_get(entity_index, entity)
 	if not r then
@@ -2123,7 +2123,7 @@ local function ecs_bulk_remove(world: World, entity: Entity, ids: { Entity })
 		return
 	end
 
-	local remove: { [Entity]: boolean } = {}
+	local remove: { [Id]: boolean } = {}
 
 	local columns_map = from.columns_map