diff --git a/packages/viewer/.eslintrc.cjs b/packages/viewer/.eslintrc.cjs
index bb6fd27..ccf28f8 100644
--- a/packages/viewer/.eslintrc.cjs
+++ b/packages/viewer/.eslintrc.cjs
@@ -32,6 +32,10 @@ module.exports = {
         "no-underscore-dangle": ["error", { allow: ["_count"] }],
       },
     },
+    {
+      files: ["route.ts", "route.tsx"],
+      rules: { "import/prefer-default-export": "off" },
+    },
     {
       files: ["*.config.*", ".*rc.*"],
       rules: {
diff --git a/packages/viewer/package.json b/packages/viewer/package.json
index 0f2cfc6..78e1632 100644
--- a/packages/viewer/package.json
+++ b/packages/viewer/package.json
@@ -36,6 +36,7 @@
     "eslint-config-airbnb-typescript": "^17.0.0",
     "eslint-config-next": "^13.4.9",
     "eslint-import-resolver-typescript": "^3.5.5",
+    "eslint-plugin-import": "^2.27.5",
     "eslint-plugin-react": "^7.32.2",
     "git-revision-webpack-plugin": "^5.0.0",
     "sass": "^1.63.6",
diff --git a/packages/viewer/src/app/(history)/[id]/snapshot/route.ts b/packages/viewer/src/app/(history)/[id]/snapshot/route.ts
index d4c1f3b..dfb6972 100644
--- a/packages/viewer/src/app/(history)/[id]/snapshot/route.ts
+++ b/packages/viewer/src/app/(history)/[id]/snapshot/route.ts
@@ -2,7 +2,6 @@ import prisma from "@/lib/prisma";
 import { notFound } from "next/navigation";
 import { NextRequest, NextResponse } from "next/server";
 
-// eslint-disable-next-line import/prefer-default-export
 export async function GET(
   request: NextRequest,
   { params }: { params: { id: string } }
diff --git a/packages/viewer/src/app/[id]/context/[user]/route.ts b/packages/viewer/src/app/[id]/context/[user]/route.ts
index 2eedb8b..f5ab094 100644
--- a/packages/viewer/src/app/[id]/context/[user]/route.ts
+++ b/packages/viewer/src/app/[id]/context/[user]/route.ts
@@ -2,7 +2,6 @@ import prisma from "@/lib/prisma";
 import { NextRequest, NextResponse } from "next/server";
 import serializeReply from "@/lib/serialize-reply";
 
-// eslint-disable-next-line import/prefer-default-export
 export async function GET(
   request: NextRequest,
   { params }: { params: { id: string; user: string } }
diff --git a/packages/viewer/src/app/[id]/replies/route.ts b/packages/viewer/src/app/[id]/replies/route.ts
index 6ee3884..ba79206 100644
--- a/packages/viewer/src/app/[id]/replies/route.ts
+++ b/packages/viewer/src/app/[id]/replies/route.ts
@@ -2,7 +2,6 @@ import { NextRequest, NextResponse } from "next/server";
 import prisma from "@/lib/prisma";
 import serializeReply from "@/lib/serialize-reply";
 
-// eslint-disable-next-line import/prefer-default-export
 export async function GET(
   request: NextRequest,
   { params }: { params: { id: string } }
diff --git a/packages/viewer/src/app/user/[uid]/discussions/data/route.ts b/packages/viewer/src/app/user/[uid]/discussions/data/route.ts
index 3fef3cc..20592fa 100644
--- a/packages/viewer/src/app/user/[uid]/discussions/data/route.ts
+++ b/packages/viewer/src/app/user/[uid]/discussions/data/route.ts
@@ -4,7 +4,6 @@ import { selectDiscussionWithContent } from "@/lib/discussion";
 import serializeReply from "@/lib/serialize-reply";
 import { NUM_PER_PAGE } from "../../constants";
 
-// eslint-disable-next-line import/prefer-default-export
 export async function GET(
   request: NextRequest,
   { params }: { params: { uid: string } }
diff --git a/packages/viewer/src/app/user/[uid]/participated/data/route.ts b/packages/viewer/src/app/user/[uid]/participated/data/route.ts
index b61f845..4337134 100644
--- a/packages/viewer/src/app/user/[uid]/participated/data/route.ts
+++ b/packages/viewer/src/app/user/[uid]/participated/data/route.ts
@@ -4,7 +4,6 @@ import { selectDiscussionWithContent } from "@/lib/discussion";
 import serializeReply from "@/lib/serialize-reply";
 import { NUM_PER_PAGE } from "../../constants";
 
-// eslint-disable-next-line import/prefer-default-export
 export async function GET(
   request: NextRequest,
   { params }: { params: { uid: string } }
diff --git a/packages/viewer/src/app/user/[uid]/replies/data/route.ts b/packages/viewer/src/app/user/[uid]/replies/data/route.ts
index 2570a4a..39c3f2a 100644
--- a/packages/viewer/src/app/user/[uid]/replies/data/route.ts
+++ b/packages/viewer/src/app/user/[uid]/replies/data/route.ts
@@ -3,7 +3,6 @@ import prisma from "@/lib/prisma";
 import serializeReply from "@/lib/serialize-reply";
 import { NUM_PER_PAGE } from "../../constants";
 
-// eslint-disable-next-line import/prefer-default-export
 export async function GET(
   request: NextRequest,
   { params }: { params: { uid: string } }
diff --git a/packages/viewer/src/app/user/[uid]/statistics/route.ts b/packages/viewer/src/app/user/[uid]/statistics/route.ts
index 8181459..0f7cb24 100644
--- a/packages/viewer/src/app/user/[uid]/statistics/route.ts
+++ b/packages/viewer/src/app/user/[uid]/statistics/route.ts
@@ -1,7 +1,6 @@
 import prisma from "@/lib/prisma";
 import { NextResponse, type NextRequest } from "next/server";
 
-// eslint-disable-next-line import/prefer-default-export
 export async function GET(
   request: NextRequest,
   { params }: { params: { uid: string } }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 692f70f..bc56aca 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -175,6 +175,9 @@ importers:
       eslint-import-resolver-typescript:
         specifier: ^3.5.5
         version: 3.5.5(@typescript-eslint/parser@5.61.0)(eslint-import-resolver-node@0.3.7)(eslint-plugin-import@2.27.5)(eslint@8.44.0)
+      eslint-plugin-import:
+        specifier: ^2.27.5
+        version: 2.27.5(@typescript-eslint/parser@5.61.0)(eslint-import-resolver-typescript@3.5.5)(eslint@8.44.0)
       eslint-plugin-react:
         specifier: ^7.32.2
         version: 7.32.2(eslint@8.44.0)