diff --git a/__tests__/index.spec.ts b/__tests__/index.spec.ts
index a4fc0889..7355aab3 100644
--- a/__tests__/index.spec.ts
+++ b/__tests__/index.spec.ts
@@ -1,7 +1,7 @@
 import fs from 'fs';
-import { ConfigFile } from '../src/getConfig';
-import build from '../src';
 import path from 'path';
+import build from '../src';
+import type { ConfigFile } from '../src/getConfig';
 
 function readDirRecursive(dirPath: string): string[] {
   return fs
diff --git a/package-lock.json b/package-lock.json
index 16169a1c..1eb95154 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -38,6 +38,7 @@
         "jest": "^29.6.2",
         "minimist": "^1.2.8",
         "prettier": "^2.8.8",
+        "prettier-plugin-organize-imports": "^3.2.3",
         "ts-jest": "^29.1.1",
         "ts-node": "^10.9.1",
         "typescript": "^5.1.6"
@@ -5788,6 +5789,26 @@
         "url": "https://github.com/prettier/prettier?sponsor=1"
       }
     },
+    "node_modules/prettier-plugin-organize-imports": {
+      "version": "3.2.3",
+      "resolved": "https://registry.npmjs.org/prettier-plugin-organize-imports/-/prettier-plugin-organize-imports-3.2.3.tgz",
+      "integrity": "sha512-KFvk8C/zGyvUaE3RvxN2MhCLwzV6OBbFSkwZ2OamCrs9ZY4i5L77jQ/w4UmUr+lqX8qbaqVq6bZZkApn+IgJSg==",
+      "dev": true,
+      "peerDependencies": {
+        "@volar/vue-language-plugin-pug": "^1.0.4",
+        "@volar/vue-typescript": "^1.0.4",
+        "prettier": ">=2.0",
+        "typescript": ">=2.9"
+      },
+      "peerDependenciesMeta": {
+        "@volar/vue-language-plugin-pug": {
+          "optional": true
+        },
+        "@volar/vue-typescript": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/pretty-format": {
       "version": "29.6.2",
       "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-29.6.2.tgz",
diff --git a/package.json b/package.json
index d2dfb2d6..e130cd73 100644
--- a/package.json
+++ b/package.json
@@ -52,6 +52,7 @@
     },
     "root": true,
     "rules": {
+      "@typescript-eslint/consistent-type-imports": "error",
       "@typescript-eslint/no-non-null-assertion": "off",
       "@typescript-eslint/explicit-function-return-type": "off",
       "@typescript-eslint/ban-ts-comment": "off",
@@ -105,6 +106,7 @@
     "jest": "^29.6.2",
     "minimist": "^1.2.8",
     "prettier": "^2.8.8",
+    "prettier-plugin-organize-imports": "^3.2.3",
     "ts-jest": "^29.1.1",
     "ts-node": "^10.9.1",
     "typescript": "^5.1.6"
diff --git a/src/buildTemplate.ts b/src/buildTemplate.ts
index 5a68243a..7e708103 100644
--- a/src/buildTemplate.ts
+++ b/src/buildTemplate.ts
@@ -1,8 +1,8 @@
 import SwaggerParser from '@apidevtools/swagger-parser';
-import { OpenAPI, OpenAPIV3 } from 'openapi-types';
+import type { OpenAPI, OpenAPIV3 } from 'openapi-types';
 import buildV3 from './buildV3';
+import type { Config } from './getConfig';
 import resolveExternalRefs from './resolveExternalRefs';
-import { Config } from './getConfig';
 
 const isV3 = (openapi: OpenAPI.Document): openapi is OpenAPIV3.Document => 'openapi' in openapi;
 
diff --git a/src/buildV3.ts b/src/buildV3.ts
index 71359aa4..a109809c 100644
--- a/src/buildV3.ts
+++ b/src/buildV3.ts
@@ -1,24 +1,19 @@
-import { OpenAPIV3 } from 'openapi-types';
+import type { OpenAPIV3 } from 'openapi-types';
 import {
-  isRefObject,
   $ref2Type,
+  BINARY_TYPE,
   getPropertyName,
+  isRefObject,
   schema2value,
-  BINARY_TYPE,
 } from './builderUtils/converters';
-import {
-  props2String,
-  Prop,
-  PropValue,
-  value2String,
-  description2Doc,
-} from './builderUtils/props2String';
-import { resolveParamsRef, resolveResRef, resolveReqRef } from './builderUtils/resolvers';
 import getDirName from './builderUtils/getDirName';
-import schemas2Props from './builderUtils/schemas2Props';
 import parameters2Props from './builderUtils/parameters2Props';
+import type { Prop, PropValue } from './builderUtils/props2String';
+import { description2Doc, props2String, value2String } from './builderUtils/props2String';
 import requestBodies2Props from './builderUtils/requestBodies2Props';
+import { resolveParamsRef, resolveReqRef, resolveResRef } from './builderUtils/resolvers';
 import responses2Props from './builderUtils/responses2Props';
+import schemas2Props from './builderUtils/schemas2Props';
 
 const methodNames = ['get', 'post', 'put', 'delete', 'head', 'options', 'patch'] as const;
 
diff --git a/src/builderUtils/converters.ts b/src/builderUtils/converters.ts
index a1c5fdb4..0852d0fd 100644
--- a/src/builderUtils/converters.ts
+++ b/src/builderUtils/converters.ts
@@ -1,5 +1,5 @@
-import { OpenAPIV3 } from 'openapi-types';
-import { Prop, PropValue } from './props2String';
+import type { OpenAPIV3 } from 'openapi-types';
+import type { Prop, PropValue } from './props2String';
 
 export const defKey2defName = (key: string) =>
   `${key[0].replace(/^([^a-zA-Z$_])$/, '$$$1').toUpperCase()}${key
diff --git a/src/builderUtils/parameters2Props.ts b/src/builderUtils/parameters2Props.ts
index cadc44cf..be728966 100644
--- a/src/builderUtils/parameters2Props.ts
+++ b/src/builderUtils/parameters2Props.ts
@@ -1,12 +1,12 @@
-import { OpenAPIV3 } from 'openapi-types';
+import type { OpenAPIV3 } from 'openapi-types';
 import {
-  isRefObject,
-  defKey2defName,
   $ref2Type,
+  defKey2defName,
   getPropertyName,
+  isRefObject,
   schema2value,
 } from './converters';
-import { Prop } from './props2String';
+import type { Prop } from './props2String';
 import { resolveParamsRef } from './resolvers';
 
 export type Parameter = { name: string; prop: string | Prop };
diff --git a/src/builderUtils/requestBodies2Props.ts b/src/builderUtils/requestBodies2Props.ts
index 16956418..b8ade09b 100644
--- a/src/builderUtils/requestBodies2Props.ts
+++ b/src/builderUtils/requestBodies2Props.ts
@@ -1,6 +1,6 @@
-import { OpenAPIV3 } from 'openapi-types';
-import { isRefObject, defKey2defName, $ref2Type, schema2value } from './converters';
-import { PropValue } from './props2String';
+import type { OpenAPIV3 } from 'openapi-types';
+import { $ref2Type, defKey2defName, isRefObject, schema2value } from './converters';
+import type { PropValue } from './props2String';
 
 export type RequestBody = { name: string; value: string | PropValue };
 
diff --git a/src/builderUtils/resolvers.ts b/src/builderUtils/resolvers.ts
index c07561c2..49c327f4 100644
--- a/src/builderUtils/resolvers.ts
+++ b/src/builderUtils/resolvers.ts
@@ -1,5 +1,5 @@
-import { OpenAPIV3 } from 'openapi-types';
-import { isRefObject, $ref2TypeName } from './converters';
+import type { OpenAPIV3 } from 'openapi-types';
+import { $ref2TypeName, isRefObject } from './converters';
 
 export const resolveParamsRef = (
   openapi: OpenAPIV3.Document,
diff --git a/src/builderUtils/responses2Props.ts b/src/builderUtils/responses2Props.ts
index 8c451a15..e9449b07 100644
--- a/src/builderUtils/responses2Props.ts
+++ b/src/builderUtils/responses2Props.ts
@@ -1,6 +1,6 @@
-import { OpenAPIV3 } from 'openapi-types';
-import { isRefObject, defKey2defName, $ref2Type, schema2value } from './converters';
-import { PropValue } from './props2String';
+import type { OpenAPIV3 } from 'openapi-types';
+import { $ref2Type, defKey2defName, isRefObject, schema2value } from './converters';
+import type { PropValue } from './props2String';
 
 export type Response = { name: string; value: string | PropValue };
 
diff --git a/src/builderUtils/schemas2Props.ts b/src/builderUtils/schemas2Props.ts
index 9a23eaac..c666e2fc 100644
--- a/src/builderUtils/schemas2Props.ts
+++ b/src/builderUtils/schemas2Props.ts
@@ -1,6 +1,6 @@
-import { OpenAPIV3 } from 'openapi-types';
-import { isRefObject, defKey2defName, schema2value } from './converters';
-import { PropValue } from './props2String';
+import type { OpenAPIV3 } from 'openapi-types';
+import { defKey2defName, isRefObject, schema2value } from './converters';
+import type { PropValue } from './props2String';
 import { resolveSchemasRef } from './resolvers';
 
 export type Schema = { name: string; value: PropValue };
diff --git a/src/getConfig.ts b/src/getConfig.ts
index 899fffa6..43b532fe 100644
--- a/src/getConfig.ts
+++ b/src/getConfig.ts
@@ -1,5 +1,6 @@
-import { OpenAPI } from 'openapi-types';
-import { AspidaConfig, getConfigs } from 'aspida/dist/cjs/commands';
+import type { AspidaConfig } from 'aspida/dist/cjs/commands';
+import { getConfigs } from 'aspida/dist/cjs/commands';
+import type { OpenAPI } from 'openapi-types';
 
 export type Config = Pick<AspidaConfig, 'outputEachDir' | 'outputMode' | 'trailingSlash'> & {
   input: string | OpenAPI.Document;
diff --git a/src/index.ts b/src/index.ts
index 3306dfba..9e4045b1 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,9 +1,9 @@
 import fs from 'fs';
 import fse from 'fs-extra';
-import getConfig from './getConfig';
 import buildTemplate from './buildTemplate';
-import writeRouteFile from './writeRouteFile';
+import getConfig from './getConfig';
 import outputFilePath from './outputFilePath';
+import writeRouteFile from './writeRouteFile';
 
 /**
  * @param {string} outputdir 出力するディレクトリー
diff --git a/src/resolveExternalRefs.ts b/src/resolveExternalRefs.ts
index f839398c..2da4808a 100644
--- a/src/resolveExternalRefs.ts
+++ b/src/resolveExternalRefs.ts
@@ -1,9 +1,9 @@
-import https from 'https';
-import http from 'http';
 import fs from 'fs';
-import path from 'path';
+import http from 'http';
+import https from 'https';
 import yaml from 'js-yaml';
-import { OpenAPIV3 } from 'openapi-types';
+import type { OpenAPIV3 } from 'openapi-types';
+import path from 'path';
 
 const getText = (url: string) =>
   new Promise<string>(resolve => {
diff --git a/src/writeRouteFile.ts b/src/writeRouteFile.ts
index 277cd7c8..12c1b6d3 100644
--- a/src/writeRouteFile.ts
+++ b/src/writeRouteFile.ts
@@ -1,5 +1,6 @@
+import type { AspidaConfig } from 'aspida/dist/cjs/commands';
+import { build } from 'aspida/dist/cjs/commands';
 import fs from 'fs';
-import { build, AspidaConfig } from 'aspida/dist/cjs/commands';
 
 export default ({
   config,