diff --git a/src/allnet.ts b/src/allnet.ts
index 82b03fd..babee6e 100644
--- a/src/allnet.ts
+++ b/src/allnet.ts
@@ -1,8 +1,7 @@
-import addHours = require("date-fns/add_hours");
-import express = require("express");
-import iconv = require("iconv-lite");
-import read = require("raw-body");
-
+import addHours from "date-fns/add_hours";
+import express from "express";
+import iconv from "iconv-lite";
+import read from "raw-body";
 import { unzipSync } from "zlib";
 
 import { startupHost, startupUri } from "./switchboard";
diff --git a/src/billing.ts b/src/billing.ts
index 6e9a335..dea3336 100644
--- a/src/billing.ts
+++ b/src/billing.ts
@@ -1,5 +1,5 @@
-import read = require("raw-body");
-import express = require("express");
+import read from "raw-body";
+import express from "express";
 
 import { createSign } from "crypto";
 import { inflateRawSync } from "zlib";
diff --git a/src/chunithm.ts b/src/chunithm.ts
index cf04def..7d90aed 100644
--- a/src/chunithm.ts
+++ b/src/chunithm.ts
@@ -1,5 +1,5 @@
-import compression = require("compression");
-import express = require("express");
+import compression from "compression";
+import express from "express";
 
 const app = express();
 
diff --git a/src/diva.ts b/src/diva.ts
index c9d011a..f435086 100644
--- a/src/diva.ts
+++ b/src/diva.ts
@@ -1,5 +1,5 @@
-import express = require("express");
-import read = require("raw-body");
+import express from "express";
+import read from "raw-body";
 
 import { Form } from "multiparty";
 import { inflateSync } from "zlib";
diff --git a/src/idz/decoder/createProfile.ts b/src/idz/decoder/createProfile.ts
index cdf04aa..74df56e 100644
--- a/src/idz/decoder/createProfile.ts
+++ b/src/idz/decoder/createProfile.ts
@@ -1,4 +1,4 @@
-import iconv = require("iconv-lite");
+import iconv from "iconv-lite";
 
 import { car } from "./_car";
 import { chara } from "./_chara";
diff --git a/src/idz/decoder/createTeam.ts b/src/idz/decoder/createTeam.ts
index 3025aa7..d568c90 100644
--- a/src/idz/decoder/createTeam.ts
+++ b/src/idz/decoder/createTeam.ts
@@ -1,4 +1,4 @@
-import iconv = require("iconv-lite");
+import iconv from "iconv-lite";
 
 import { RequestCode } from "./_defs";
 import { CreateTeamRequest } from "../request/createTeam";
diff --git a/src/idz/encoder/_team.ts b/src/idz/encoder/_team.ts
index 18543d2..45a8d73 100644
--- a/src/idz/encoder/_team.ts
+++ b/src/idz/encoder/_team.ts
@@ -1,4 +1,4 @@
-import iconv = require("iconv-lite");
+import iconv from "iconv-lite";
 
 import { CreateAutoTeamResponse } from "../response/createAutoTeam";
 import { LoadTeamResponse } from "../response/loadTeam";
diff --git a/src/idz/encoder/loadGeneralReward.ts b/src/idz/encoder/loadGeneralReward.ts
index cfdc93f..aec55a1 100644
--- a/src/idz/encoder/loadGeneralReward.ts
+++ b/src/idz/encoder/loadGeneralReward.ts
@@ -1,4 +1,4 @@
-import iconv = require("iconv-lite");
+import iconv from "iconv-lite";
 
 import { LoadGeneralRewardResponse } from "../response/loadGeneralReward";
 
diff --git a/src/idz/encoder/loadProfile2.ts b/src/idz/encoder/loadProfile2.ts
index 066b14f..44f9dce 100644
--- a/src/idz/encoder/loadProfile2.ts
+++ b/src/idz/encoder/loadProfile2.ts
@@ -1,4 +1,4 @@
-import iconv = require("iconv-lite");
+import iconv from "iconv-lite";
 
 import { encodeBitmap } from "./_bitmap";
 import { encodeCar } from "./_car";
diff --git a/src/idz/encoder/loadProfile3.ts b/src/idz/encoder/loadProfile3.ts
index abdb551..4cdb5e8 100644
--- a/src/idz/encoder/loadProfile3.ts
+++ b/src/idz/encoder/loadProfile3.ts
@@ -1,4 +1,4 @@
-import iconv = require("iconv-lite");
+import iconv from "iconv-lite";
 
 import { encodeBitmap } from "./_bitmap";
 import { encodeCar } from "./_car";
diff --git a/src/idz/encoder/loadTopTen.ts b/src/idz/encoder/loadTopTen.ts
index febaf71..d289418 100644
--- a/src/idz/encoder/loadTopTen.ts
+++ b/src/idz/encoder/loadTopTen.ts
@@ -1,4 +1,4 @@
-import iconv = require("iconv-lite");
+import iconv from "iconv-lite";
 
 import { LoadTopTenResponse } from "../response/loadTopTen";
 
diff --git a/src/idz/encoder/updateProvisionalStoreRank.ts b/src/idz/encoder/updateProvisionalStoreRank.ts
index 6befaa2..74faedc 100644
--- a/src/idz/encoder/updateProvisionalStoreRank.ts
+++ b/src/idz/encoder/updateProvisionalStoreRank.ts
@@ -1,4 +1,4 @@
-import iconv = require("iconv-lite");
+import iconv from "iconv-lite";
 
 import { UpdateProvisionalStoreRankResponse } from "../response/updateProvisionalStoreRank";
 
diff --git a/src/index.ts b/src/index.ts
index e4cee78..de27431 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,9 +1,8 @@
 import "dotenv/config";
-
-import fs = require("fs");
-import https = require("https");
-import http = require("http");
-import net = require("net");
+import fs from "fs";
+import https from "https";
+import http from "http";
+import net from "net";
 
 import aimedb from "./aimedb";
 import allnet from "./allnet";
diff --git a/tsconfig.json b/tsconfig.json
index 209a7c6..93f9dca 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,5 +1,6 @@
 {
   "compilerOptions": {
+    "esModuleInterop": true,
     "lib": ["es2017", "esnext.asynciterable"],
     "module": "commonjs",
     "moduleResolution": "node",