diff --git a/README.md b/README.md
index 1e1a6861..d795de9b 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ or
 yarn add next-data-hooks
 ```
 
-2. Add Provider to `_app`
+2. Add Provider to `_app.tsx` or `_app.js`
 
 ```tsx
 import { AppProps } from 'next/app';
diff --git a/declarations.d.ts b/declarations.d.ts
deleted file mode 100644
index c601d70f..00000000
--- a/declarations.d.ts
+++ /dev/null
@@ -1,48 +0,0 @@
-import { GetStaticPropsContext } from 'next';
-declare type Unwrap<T> = T extends Promise<infer U> ? U : T;
-/**
- * Creates a data hook.
- *
- * @param key The key to uniquely identify this data hooks from other on the same page.
- * @param getData An async for data that will be called via `getStaticProps` in next.js
- * @return A hook that can be used in any component within the page's React tree
- */
-declare function createDataHook<R>(key: string, getData: (variables: GetStaticPropsContext) => R | Promise<R>): (() => Unwrap<R>) & {
-    getData: (variables: GetStaticPropsContext) => R | Promise<R>;
-    key: string;
-};
-export default createDataHook;
-
-import { GetStaticPropsContext } from 'next';
-import createDataHook from './create-data-hook';
-declare type DataHook = ReturnType<typeof createDataHook>;
-/**
- * Given an array of data hooks created with `createDataHooks`, this function
- * returns a function that be used as a `getStaticProps` implementation.
- *
- * @param hooks an array of data hooks created with `createDataHooks`
- * @return a `getStaticProps` implementation
- */
-declare function createDataHooksProps(hooks: DataHook[]): (context: GetStaticPropsContext) => Promise<{
-    props: {
-        nextDataHooks: any;
-    };
-}>;
-export default createDataHooksProps;
-
-/// <reference types="react" />
-interface NextDataHooksContextValue {
-    [key: string]: any;
-}
-/**
- * React Context used by `next-data-hooks` to pull static data.
- */
-declare const NextDataHooksContext: import("react").Context<NextDataHooksContextValue>;
-export default NextDataHooksContext;
-
-/// <reference types="react" />
-/**
- * Injects the data from data hooks into React Context. Place this in `_app`
- */
-declare function NextDataHooksProvider({ nextDataHooks, children }: any): JSX.Element;
-export default NextDataHooksProvider;