diff --git a/appsync.d.ts b/appsync.d.ts
index 443ae3f..59db819 100644
--- a/appsync.d.ts
+++ b/appsync.d.ts
@@ -134,9 +134,7 @@ export type MutationInsertJoinRequestArgs = {
   localAuthority: Scalars['String']['input'];
   name: Scalars['String']['input'];
   phone?: InputMaybe<Scalars['String']['input']>;
-  requestTime: Scalars['Float']['input'];
   school?: InputMaybe<Scalars['String']['input']>;
-  status: Scalars['String']['input'];
   type: Scalars['String']['input'];
 };
 
diff --git a/schema.graphql b/schema.graphql
index 2bf0976..5a7856c 100644
--- a/schema.graphql
+++ b/schema.graphql
@@ -111,8 +111,6 @@ type Mutation {
     name: String!
     localAuthority: String!
     type: String!
-    requestTime: Float!
-    status: String!
     email: String!
     school: String
     jobTitle: String
diff --git a/src/handlers/privateResolver.ts b/src/handlers/privateResolver.ts
index f50783c..ed1b62b 100644
--- a/src/handlers/privateResolver.ts
+++ b/src/handlers/privateResolver.ts
@@ -32,6 +32,7 @@ export const handler: AppSyncResolverHandler<
   | MutationUpdateSchoolProfileArgs
   | MutationUpdateJoinRequestArgs
   | MutationInsertItemQueryArgs
+  | MutationInsertJoinRequestArgs
   | MutationInsertLocalAuthorityRegisterRequestArgs,
   boolean
 > = async (event, context, callback) => {
@@ -81,10 +82,10 @@ export const handler: AppSyncResolverHandler<
       const status = 'NEW';
       const requestTime = Number(new Date());
       const res = await joinRequestsRepository.insert({
-        ...params,
+        ...(params as MutationInsertJoinRequestArgs),
         status,
         requestTime,
-      } as MutationInsertJoinRequestArgs);
+      });
       callback(null, res);
       break;
     }