diff --git a/README.md b/README.md
index 6574765..e72fb49 100644
--- a/README.md
+++ b/README.md
@@ -62,12 +62,6 @@ E.g:
 <Box is={Link} to="/login">Login</Box>
 ```
 
-##### innerRef
-
-Type: `function`
-
-Callback that gets passed a ref to inner DOM node (or component if the `is` prop is set to a React component type).
-
 ##### clearfix
 
 Type: `boolean`
diff --git a/package.json b/package.json
index 863e57f..34f5cfa 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ui-box",
-  "version": "3.3.0",
+  "version": "4.0.0-0",
   "description": "Blazing Fast React UI Primitive",
   "contributors": [
     "Jeroen Ransijn (https://twitter.com/jeroen_ransijn)",
@@ -14,10 +14,10 @@
   ],
   "repository": "segmentio/ui-box",
   "license": "MIT",
-  "main": "dist/index.js",
-  "typings": "dist/index.d.ts",
+  "main": "dist/src/index.js",
+  "typings": "dist/src/index.d.ts",
   "files": [
-    "dist"
+    "dist/src"
   ],
   "sideEffects": false,
   "scripts": {
@@ -27,7 +27,7 @@
     "build": "tsc",
     "build-storybook": "build-storybook -s .storybook/static -o .out",
     "release": "np",
-    "benchmark": "echo ui-box && react-benchmark tools/benchmarks/box.js",
+    "benchmark": "echo ui-box && react-benchmark dist/tools/benchmarks/box.js",
     "size": "size-limit",
     "coverage": "nyc report --reporter=html"
   },
@@ -150,7 +150,7 @@
   "size-limit": [
     {
       "webpack": false,
-      "path": "dist/index.js",
+      "path": "dist/src/index.js",
       "limit": "5 KB",
       "running": false,
       "gzip": false
diff --git a/src/box.tsx b/src/box.tsx
index 3e4d331..f201931 100644
--- a/src/box.tsx
+++ b/src/box.tsx
@@ -1,18 +1,18 @@
-import React from 'react'
+import React, { forwardRef } from 'react'
 import PropTypes from 'prop-types'
-import {BoxComponent} from './types/box-types'
+import {BoxComponent, ForwardRefBoxComponent} from './types/box-types'
 import {propTypes} from './enhancers'
 import enhanceProps from './enhance-props'
 import {extractAnchorProps, getUseSafeHref} from './utils/safeHref'
 
-const Box: BoxComponent = ({ is = 'div', innerRef, children, allowUnsafeHref, ...props }) => {
+const Box: ForwardRefBoxComponent = ({ is = 'div', children, allowUnsafeHref, ...props }, ref) => {
   // Convert the CSS props to class names (and inject the styles)
   const {className, enhancedProps: parsedProps} = enhanceProps(props)
 
   parsedProps.className = className
 
-  if (innerRef) {
-    parsedProps.ref = innerRef
+  if (ref) {
+    parsedProps.ref = ref
   }
 
   /**
@@ -32,19 +32,17 @@ const Box: BoxComponent = ({ is = 'div', innerRef, children, allowUnsafeHref, ..
 
 Box.displayName = 'Box'
 
-Box.propTypes = {
+const BoxWithRef = forwardRef(Box) as BoxComponent
+
+BoxWithRef.propTypes = {
   ...propTypes,
-  innerRef: PropTypes.oneOfType([
-    PropTypes.func,
-    PropTypes.shape({ current: PropTypes.element })
-  ]),
-  is: PropTypes.oneOfType([PropTypes.string, PropTypes.func, PropTypes.elementType])
+  is: PropTypes.oneOfType([PropTypes.string, PropTypes.func, PropTypes.elementType]),
+  allowUnsafeHref: PropTypes.bool
 }
 
-Box.defaultProps = {
-  innerRef: null,
+BoxWithRef.defaultProps = {
   is: 'div',
   boxSizing: 'border-box'
 }
 
-export default Box
+export default BoxWithRef
diff --git a/src/types/box-types.ts b/src/types/box-types.ts
index ed7cf67..5eb2eb8 100644
--- a/src/types/box-types.ts
+++ b/src/types/box-types.ts
@@ -29,7 +29,7 @@ export type RefType<T> = T extends keyof DomNodes
  * Remove box props from object `T` if they're present
  * @template T Object
  */
-type WithoutBoxProps<T> = Without<T, "is" | "innerRef">
+type WithoutBoxProps<T> = Without<T, "is">
 
 /**
  * Grab components passed to the `is` prop and return their props
@@ -53,7 +53,7 @@ export type BoxProps<T extends Is> = InheritedProps<T> &
      * Callback that gets passed a ref to inner DOM node (or component if the
      * `is` prop is set to a React component type).
      */
-    innerRef?: React.Ref<RefType<T>>
+    ref?: React.Ref<RefType<T>>
 
     /**
      * Allows the high level value of safeHref to be overwritten on an individual component basis
@@ -61,6 +61,12 @@ export type BoxProps<T extends Is> = InheritedProps<T> &
     allowUnsafeHref?: boolean
   }
 
+export interface ForwardRefBoxComponent {
+  <T extends Is>(props: BoxProps<T>, ref?: React.Ref<RefType<T>>): React.ReactElement | null
+  propTypes?: React.FunctionComponent['propTypes']
+  displayName?: React.FunctionComponent['displayName']
+}
+
 export interface BoxComponent {
   <T extends Is>(props: BoxProps<T>): React.ReactElement | null
   propTypes?: React.FunctionComponent['propTypes']
diff --git a/test/box.tsx b/test/box.tsx
index 122666a..17eeff8 100644
--- a/test/box.tsx
+++ b/test/box.tsx
@@ -57,16 +57,16 @@ test('is prop allows changing the component type', t => {
   t.true(component.is(TestComponent))
 })
 
-test('innerRef prop gets passed the ref', t => {
+test('ref gets forwarded', t => {
   const node = {domNode: true}
-  const innerRef = sinon.spy()
-  render.create(<Box innerRef={innerRef} />, {
+  const ref = sinon.spy()
+  render.create(<Box ref={ref} />, {
     createNodeMock() {
       return node
     }
   })
-  t.true(innerRef.calledOnce)
-  t.is(innerRef.args[0][0], node)
+  t.true(ref.calledOnce)
+  t.is(ref.args[0][0], node)
 })
 
 test('renders children', t => {
diff --git a/tools/story.tsx b/tools/story.tsx
index 06abee0..059cf98 100644
--- a/tools/story.tsx
+++ b/tools/story.tsx
@@ -180,14 +180,14 @@ storiesOf('Box', module)
       <Box boxSizing="border-box">boxSizing: border-box</Box>
     </Box>
   ))
-  .add('innerRef', () => (
+  .add('ref', () => (
     <Box>
-      <Box innerRef={logRef}>innerRef</Box>
+      <Box ref={logRef}>ref</Box>
     </Box>
   ))
-  .add('innerRef as React ref', () => (
+  .add('ref as React ref', () => (
     <Box>
-      <Box innerRef={reactRef}>React ref</Box>
+      <Box ref={reactRef}>React ref</Box>
     </Box>
   ))
   .add('props pass through', () => (
diff --git a/tsconfig.json b/tsconfig.json
index ec28fd3..5ba8e22 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -27,6 +27,7 @@
     "esModuleInterop": true
   },
   "include": [
-    "src"
+    "src",
+    "tools"
   ]
 }