diff --git a/packages/is-shallow-equal/.eslintrc.json b/packages/is-shallow-equal/.eslintrc.json
new file mode 100644
index 00000000000000..118dc091c3c8a3
--- /dev/null
+++ b/packages/is-shallow-equal/.eslintrc.json
@@ -0,0 +1,5 @@
+{
+	"rules": {
+		"no-var": 0
+	}
+}
diff --git a/packages/is-shallow-equal/src/arrays.js b/packages/is-shallow-equal/arrays.js
similarity index 81%
rename from packages/is-shallow-equal/src/arrays.js
rename to packages/is-shallow-equal/arrays.js
index b11693ce1e8654..950224a8c8c50a 100644
--- a/packages/is-shallow-equal/src/arrays.js
+++ b/packages/is-shallow-equal/arrays.js
@@ -1,3 +1,5 @@
+'use strict';
+
 /**
  * Returns true if the two arrays are shallow equal, or false otherwise.
  *
@@ -7,6 +9,8 @@
  * @return {boolean} Whether the two arrays are shallow equal.
  */
 function isShallowEqualArrays( a, b ) {
+	var i;
+
 	if ( a === b ) {
 		return true;
 	}
@@ -15,7 +19,7 @@ function isShallowEqualArrays( a, b ) {
 		return false;
 	}
 
-	for ( let i = 0; i < a.length; i++ ) {
+	for ( i = 0; i < a.length; i++ ) {
 		if ( a[ i ] !== b[ i ] ) {
 			return false;
 		}
@@ -24,4 +28,4 @@ function isShallowEqualArrays( a, b ) {
 	return true;
 }
 
-export default isShallowEqualArrays;
+module.exports = isShallowEqualArrays;
diff --git a/packages/is-shallow-equal/src/index.js b/packages/is-shallow-equal/index.js
similarity index 73%
rename from packages/is-shallow-equal/src/index.js
rename to packages/is-shallow-equal/index.js
index 8ccdec24924335..8ab40b0cf25d73 100644
--- a/packages/is-shallow-equal/src/index.js
+++ b/packages/is-shallow-equal/index.js
@@ -1,13 +1,12 @@
-/**
- * Internal dependencies
- */
-import isShallowEqualObjects from './objects';
-import isShallowEqualArrays from './arrays';
+'use strict';
 
 /**
- * Local variables
+ * Internal dependencies;
  */
-const { isArray } = Array;
+var isShallowEqualObjects = require( './objects' );
+var isShallowEqualArrays = require( './arrays' );
+
+var isArray = Array.isArray;
 
 /**
  * Returns true if the two arrays or objects are shallow equal, or false
@@ -30,4 +29,4 @@ function isShallowEqual( a, b ) {
 	return a === b;
 }
 
-export default isShallowEqual;
+module.exports = isShallowEqual;
diff --git a/packages/is-shallow-equal/src/objects.js b/packages/is-shallow-equal/objects.js
similarity index 73%
rename from packages/is-shallow-equal/src/objects.js
rename to packages/is-shallow-equal/objects.js
index e02ed8469367e7..12df62d2a04075 100644
--- a/packages/is-shallow-equal/src/objects.js
+++ b/packages/is-shallow-equal/objects.js
@@ -1,7 +1,6 @@
-/**
- * Local variables
- */
-const { keys } = Object;
+'use strict';
+
+var keys = Object.keys;
 
 /**
  * Returns true if the two objects are shallow equal, or false otherwise.
@@ -12,21 +11,23 @@ const { keys } = Object;
  * @return {boolean} Whether the two objects are shallow equal.
  */
 function isShallowEqualObjects( a, b ) {
+	var aKeys, bKeys, i, key;
+
 	if ( a === b ) {
 		return true;
 	}
 
-	const aKeys = keys( a );
-	const bKeys = keys( b );
+	aKeys = keys( a );
+	bKeys = keys( b );
 
 	if ( aKeys.length !== bKeys.length ) {
 		return false;
 	}
 
-	let i = 0;
+	i = 0;
 
 	while ( i < aKeys.length ) {
-		const key = aKeys[ i ];
+		key = aKeys[ i ];
 		if ( a[ key ] !== b[ key ] ) {
 			return false;
 		}
@@ -37,4 +38,4 @@ function isShallowEqualObjects( a, b ) {
 	return true;
 }
 
-export default isShallowEqualObjects;
+module.exports = isShallowEqualObjects;
diff --git a/packages/is-shallow-equal/package.json b/packages/is-shallow-equal/package.json
index 9de339c3178cd4..722049d5a4fb93 100644
--- a/packages/is-shallow-equal/package.json
+++ b/packages/is-shallow-equal/package.json
@@ -18,8 +18,11 @@
 	"bugs": {
 		"url": "https://github.com/WordPress/gutenberg/issues"
 	},
-	"main": "build/index.js",
-	"module": "build-module/index.js",
+	"files": [
+		"arrays.js",
+		"objects.js"
+	],
+	"main": "index.js",
 	"dependencies": {
 		"@babel/runtime": "^7.0.0-beta.52"
 	},
diff --git a/packages/is-shallow-equal/src/test/index.js b/packages/is-shallow-equal/test/index.js
similarity index 100%
rename from packages/is-shallow-equal/src/test/index.js
rename to packages/is-shallow-equal/test/index.js
diff --git a/webpack.config.js b/webpack.config.js
index fcb61fd7487d19..49528634399c4b 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -163,6 +163,7 @@ const config = {
 				test: /\.js$/,
 				exclude: [
 					/block-serialization-spec-parser/,
+					/is-shallow-equal/,
 					/node_modules/,
 				],
 				use: 'babel-loader',
@@ -233,7 +234,6 @@ const config = {
 			'api-fetch',
 			'deprecated',
 			'dom-ready',
-			'is-shallow-equal',
 		].map( camelCaseDash ) ),
 	],
 	stats: {