diff --git a/src/Updux.test.js b/src/Updux.test.js
index 7499803..405c74d 100644
--- a/src/Updux.test.js
+++ b/src/Updux.test.js
@@ -1,10 +1,7 @@
-import { test } from 'tap';
-import sinon from 'sinon';
+import { Updux } from './Updux';
+import { action } from './actions';
 
-import { Updux } from './Updux.js';
-import { action } from './actions.js';
-
-test('basic state', async (t) => {
+test('basic state', () => {
     const alpha = new Updux({
         initial: { sub: 1 },
     });
@@ -18,7 +15,7 @@ test('basic state', async (t) => {
         subduxes: { alpha, beta },
     });
 
-    t.same(dux.initial, {
+    expect(dux.initial).toMatchObject({
         a: 1,
         b: 'two',
         alpha: { sub: 1 },
@@ -26,7 +23,7 @@ test('basic state', async (t) => {
     });
 });
 
-test('basic actions', async (t) => {
+test('basic actions', () => {
     const alpha = new Updux({
         actions: {
             foo: action('foo'),
@@ -42,10 +39,10 @@ test('basic actions', async (t) => {
         },
     });
 
-    t.same(Object.keys(dux.actions).sort(), ['bar', 'foo']);
+    expect(Object.keys(dux.actions).sort()).toMatchObject(['bar', 'foo']);
 });
 
-test('setAction', async (t) => {
+test('setAction', () => {
     const dux = new Updux({
         actions: {
             bar: action('bar'),
@@ -53,10 +50,10 @@ test('setAction', async (t) => {
     });
     dux.setAction('foo');
 
-    t.same(Object.keys(dux.actions).sort(), ['bar', 'foo']);
+    expect(Object.keys(dux.actions).sort()).toMatchObject(['bar', 'foo']);
 });
 
-test('basic selectors', async (t) => {
+test('basic selectors', () => {
     const alpha = new Updux({
         initial: { quux: 3 },
         selectors: {
@@ -83,20 +80,20 @@ test('basic selectors', async (t) => {
     );
     dux.setAction('stuff');
 
-    t.equal(dux.selectors.getBar({ bar: 3 }), 3);
-    t.equal(dux.selectors.getFoo({ foo: 3 }), 3);
+    expect(dux.selectors.getBar({ bar: 3 })).toEqual(3);
+    expect(dux.selectors.getFoo({ foo: 3 })).toEqual(3);
 
-    t.equal(alpha.selectors.getQuux({ quux: 1 }), 1);
-    t.equal(dux.selectors.getQuux({ alpha: { quux: 1 } }), 1);
+    expect(alpha.selectors.getQuux({ quux: 1 })).toEqual(1);
+    expect(dux.selectors.getQuux({ alpha: { quux: 1 } })).toEqual(1);
 
     const store = dux.createStore();
 
-    t.equal(store.getState.getFoo(), 1);
-    t.equal(store.getState.getQuux(), 3);
-    t.equal(store.getState.getAdd(7), 8);
+    expect(store.getState.getFoo()).toEqual(1);
+    expect(store.getState.getQuux()).toEqual(3);
+    expect(store.getState.getAdd(7)).toEqual(8);
 });
 
-test('mutations', async (t) => {
+test('mutations', () => {
     const alpha = new Updux({
         initial: { quux: 3 },
     });
@@ -124,7 +121,7 @@ test('mutations', async (t) => {
 
     const store = dux.createStore();
 
-    t.same(store.getState(), {
+    expect(store.getState()).toMatchObject({
         foo: 1,
         bar: 4,
         alpha: { quux: 3 },
@@ -132,7 +129,7 @@ test('mutations', async (t) => {
 
     store.dispatch.add(10);
 
-    t.same(store.getState(), {
+    expect(store.getState()).toMatchObject({
         foo: 11,
         bar: 4,
         alpha: { quux: 13 },
@@ -140,15 +137,15 @@ test('mutations', async (t) => {
 
     store.dispatch.subtract(20);
 
-    t.same(store.getState(), {
+    expect(store.getState()).toMatchObject({
         foo: 11,
         bar: -16,
         alpha: { quux: 13 },
     });
 });
 
-test('middleware', async (t) => {
-    const fooEffect = sinon.fake.returns(true);
+test('middleware', () => {
+    const fooEffect = jest.fn(() => true);
 
     const dux = new Updux({
         effects: {
@@ -161,9 +158,9 @@ test('middleware', async (t) => {
 
     const store = dux.createStore();
 
-    t.notOk(fooEffect.called, 'not called yet');
+    expect(fooEffect).not.toBeCalled();
 
     store.dispatch({ type: 'foo' });
 
-    t.ok(fooEffect.called, "now it's been called");
+    expect(fooEffect).toBeCalled();
 });