diff --git a/src/components/IntroBlock.vue b/src/components/IntroBlock.vue
index bd695a9..ef80021 100644
--- a/src/components/IntroBlock.vue
+++ b/src/components/IntroBlock.vue
@@ -1,22 +1,16 @@
 <script setup lang="ts">
 import { NButton, NInput, NSpace, NText, NUpload, NUploadDragger } from 'naive-ui'
-import { computed, type PropType } from 'vue'
+import { computed } from 'vue'
 
 import { getURL } from '@/api/generated/crabs/evening_detective_server/client'
 import type { EditableIntroduction } from '@/types/editor'
 
 import MessagePaper from './MessagePaper.vue'
 
-const props = defineProps({
-  introduction: {
-    type: Object as PropType<EditableIntroduction>,
-    required: true,
-  },
-  mode: {
-    type: String,
-    required: true,
-  },
-})
+const props = defineProps<{
+  introduction: EditableIntroduction
+  mode: string
+}>()
 
 const emit = defineEmits<{
   'update:mode': [value: string]