diff --git a/source/index.ts b/source/index.ts
index ddb4c6f..ba5c0f7 100644
--- a/source/index.ts
+++ b/source/index.ts
@@ -1,4 +1,4 @@
-import * as util from 'util';
+import util from 'util';
 import symbolObservable from 'symbol-observable';
 
 type TypedArray = Int8Array | Uint8Array | Uint8ClampedArray | Int16Array | Uint16Array | Int32Array | Uint32Array | Float32Array | Float64Array;
diff --git a/source/tests/test.ts b/source/tests/test.ts
index c86ed75..ae99c2c 100644
--- a/source/tests/test.ts
+++ b/source/tests/test.ts
@@ -1,8 +1,8 @@
-import * as fs from 'fs';
-import * as net from 'net';
-import * as Stream from 'stream';
-import * as util from 'util';
-import * as tempy from 'tempy';
+import fs from 'fs';
+import net from 'net';
+import Stream from 'stream';
+import util from 'util';
+import tempy from 'tempy';
 import test, {TestContext, Context} from 'ava';
 import {JSDOM} from 'jsdom';
 import {Subject, Observable} from 'rxjs';
diff --git a/tsconfig.json b/tsconfig.json
index fe251cc..2a1baca 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,25 +1,30 @@
 {
 	"compilerOptions": {
 		"outDir": "dist",
-		"target": "es2015",
-		"module": "commonjs",
-		"moduleResolution": "node",
-		"declaration": true,
-		"skipLibCheck": true,
-		"pretty": true,
-		"newLine": "lf",
+		"target": "es2016",
 		"lib": [
 			"dom",
 			"es2015",
+			"es2016",
 			"es2017.sharedmemory"
 		],
+		"module": "commonjs",
+		"moduleResolution": "node",
+		"esModuleInterop": true,
+		"allowSyntheticDefaultImports": true,
+		"sourceMap": true,
+		"declaration": true,
+		"pretty": true,
+		"newLine": "lf",
 		"stripInternal": true,
 		"strict": true,
 		"noImplicitReturns": true,
 		"noUnusedLocals": true,
 		"noUnusedParameters": true,
 		"noFallthroughCasesInSwitch": true,
-		"esModuleInterop": true
+		"noEmitOnError": true,
+		"forceConsistentCasingInFileNames": true,
+		"skipLibCheck": true
 	},
 	"exclude": [
 		"node_modules",