Vue v-model未选中复选框上的值

<template>
  <div>
    <input type="checkbox" id="checkbox1" value="option1" v-model="selectedOptions">
    <label for="checkbox1">选项1</label>
    <br>
    <input type="checkbox" id="checkbox2" value="option2" v-model="selectedOptions">
    <label for="checkbox2">选项2</label>
    <br>
    <input type="checkbox" id="checkbox3" value="option3" v-model="selectedOptions">
    <label for="checkbox3">选项3</label>
  </div>
</template>

<script>
export default {
  data() {
    return {
      selectedOptions: []
    };
  }
};
</script>