diff --git a/index.d.ts b/index.d.ts
index 0ed4ee7..432be34 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1,14 +1,14 @@
 import { AxiosInstance } from 'axios';
 
-export interface AppOptions {
+declare interface AppOptions {
   readonly slug: string;
 }
 
-export interface Client {
+declare interface Client {
   app(options: AppOptions): App;
 }
 
-export interface App {
+declare interface App {
   readonly app: { slug: string };
 
   /**
@@ -20,23 +20,23 @@ export interface App {
   triggerBuild(buildParams?: BuildOptions): Promise<Build>;
 }
 
-export interface AbortOptions {
+declare interface AbortOptions {
   readonly reason?: string;
   readonly withSuccess?: boolean;
   readonly skipNotifications?: boolean;
 }
 
-export interface FollowOptions {
+declare interface FollowOptions {
   readonly heartbeat?: number;
   readonly interval?: number;
 }
 
-export interface AbortResponse {
+declare interface AbortResponse {
   readonly status?: string;
   readonly message?: string;
 }
 
-export interface BuildDescription {
+declare interface BuildDescription {
   readonly abort_reason: string;
   readonly branch: string;
   readonly build_number: number;
@@ -62,10 +62,8 @@ export interface BuildDescription {
   readonly triggered_workflow: string;
 }
 
-export interface Build {
-  abort(
-    options?: Pick<AbortOptions, Exclude<AbortOptions, 'reason'>>
-  ): Promise<void>;
+declare interface Build {
+  abort(options?: Omit<AbortOptions, 'reason'>): Promise<void>;
   abort(options?: AbortOptions): Promise<AbortResponse>;
 
   describe(): Promise<BuildDescription>;
@@ -75,19 +73,19 @@ export interface Build {
   isFinished(): Promise<Boolean>;
 }
 
-export interface CommitPathsFilter {
+declare interface CommitPathsFilter {
   readonly added?: string[];
   readonly modified?: string[];
   readonly removed?: string[];
 }
 
-export type BuildTargetStrategy =
+declare type BuildTargetStrategy =
   | { branch: string }
   | { commitHash: string }
   | { workflow: string }
   | { tag: string };
 
-export interface BaseBuildOptions {
+declare interface BaseBuildOptions {
   readonly branch?: string;
   readonly commitHash?: string;
   readonly commitMessage?: string;
@@ -106,11 +104,12 @@ export interface BaseBuildOptions {
   readonly target?: string;
 }
 
-export type BuildOptions = BaseBuildOptions & BuildTargetStrategy;
+declare type BuildOptions = BaseBuildOptions & BuildTargetStrategy;
 
-export interface ClientConfiguration {
+declare interface ClientConfiguration {
   readonly token: string;
 }
 
-export const createClient: (config: ClientConfiguration) => Client;
-export default createClient;
+declare function createClient(config: ClientConfiguration): Client;
+
+export = createClient;
diff --git a/src/client.js b/src/client.js
index 67db881..2a11815 100644
--- a/src/client.js
+++ b/src/client.js
@@ -19,5 +19,3 @@ const createClient = ({ token }) => {
 };
 
 module.exports = createClient;
-module.exports.createClient = createClient;
-module.exports.default = createClient;