diff --git a/src/subscriptions.test.js b/src/subscriptions.test.js
index 185fd32..870d4f1 100644
--- a/src/subscriptions.test.js
+++ b/src/subscriptions.test.js
@@ -1,11 +1,9 @@
-import tap from 'tap';
-import sinon from 'sinon';
-import u from '@yanick/updeep';
+import u from 'updeep';
 
-import { Updux } from './Updux.js';
-import { action } from './actions.js';
+import { Updux } from './Updux';
+import { action } from './actions';
 
-tap.test('subscriptions', async () => {
+test('subscriptions', () => {
     const inc = action('inc');
     const set_copy = action('set_copy');
 
@@ -34,15 +32,15 @@ tap.test('subscriptions', async () => {
 
     store.dispatch(inc());
 
-    tap.same(store.getState(), { x: 1, copy: 1 });
+    expect(store.getState()).toMatchObject({ x: 1, copy: 1 });
 
     store.dispatch(inc());
     store.dispatch(inc());
 
-    tap.same(store.getState(), { x: 3, copy: 2 }, 'we unsubscribed');
+    expect(store.getState()).toMatchObject({ x: 3, copy: 2 });
 });
 
-tap.test('subduxes subscriptions', async (t) => {
+test('subduxes subscriptions', () => {
     const inc_top = action('inc_top');
     const inc_bar = action('inc_bar');
     const transform_bar = action('transform_bar');
@@ -54,7 +52,7 @@ tap.test('subduxes subscriptions', async (t) => {
             inc_bar: () => (state) => state + 'a',
             transform_bar: (outcome) => () => outcome,
         },
-        subscriptions: [
+        reactions: [
             (store) => (state, previous, unsubscribe) => {
                 if (state.length <= 2) return;
                 unsubscribe();
@@ -79,7 +77,7 @@ tap.test('subduxes subscriptions', async (t) => {
                 next(action);
             },
         },
-        subscriptions: [
+        reactions: [
             (store) => {
                 return ({ count }, { count: previous } = {}) => {
                     if (count !== previous) {
@@ -96,20 +94,23 @@ tap.test('subduxes subscriptions', async (t) => {
     store.dispatch(inc_top());
     store.dispatch(inc_top());
 
-    t.same(store.getState(), {
+    expect(store.getState()).toMatchObject({
         count: 2,
         bar: 'look at look at aaa',
     });
     store.dispatch(inc_top());
-    t.same(store.getState(), {
+    expect(store.getState()).toMatchObject({
         count: 3,
         bar: 'look at look at aaaa',
     });
 });
 
-tap.test('subscription within subduxes', { todo: false }, async (t) => {
-    let innerState = sinon.fake.returns(null);
-    let outerState = sinon.fake.returns(null);
+test('subscription within subduxes', () => {
+    let innerState = jest.fn(() => null);
+    let outerState = jest.fn(() => null);
+
+    const resetMocks = () =>
+        [innerState, outerState].map((f) => f.mockReset());
 
     const inner = new Updux({
         initial: 1,
@@ -117,7 +118,7 @@ tap.test('subscription within subduxes', { todo: false }, async (t) => {
         mutations: {
             inc: () => (state) => state + 1,
         },
-        subscriptions: [
+        reactions: [
             (store) => (state, previous, unsub) => {
                 if (!previous) return;
                 store.subscribe(innerState);
@@ -135,7 +136,7 @@ tap.test('subscription within subduxes', { todo: false }, async (t) => {
         mutations: {
             incOuter: () => (state) => ({ ...state, x: state.x + 1 }),
         },
-        subscriptions: [
+        reactions: [
             (store) => (state, previous, unsub) => {
                 if (!previous) return;
                 store.subscribe(outerState);
@@ -149,39 +150,44 @@ tap.test('subscription within subduxes', { todo: false }, async (t) => {
     store.dispatch({ type: 'noop' });
     store.dispatch({ type: 'noop' });
 
-    t.notOk(innerState.called);
-    t.notOk(outerState.called);
+    expect(innerState).not.toHaveBeenCalled();
+    expect(outerState).not.toHaveBeenCalled();
 
     store.dispatch.inc();
 
     // not called yet
-    t.notOk(innerState.called);
-    t.notOk(outerState.called);
+    expect(innerState).not.toBeCalled();
+    expect(outerState).not.toBeCalled();
 
     store.dispatch.inc();
-    t.ok(outerState.calledOnce);
-    t.same(outerState.firstCall.args[0], { inner: 3, x: 0 });
+    expect(outerState).toBeCalledTimes(1);
+    expect(outerState).toHaveBeenCalledWith(
+        { inner: 3, x: 0 },
+        undefined,
+        expect.anything()
+    );
 
-    t.ok(innerState.calledOnce);
-    t.same(innerState.firstCall.args[0], 3);
+    expect(innerState).toHaveBeenCalled();
+    expect(innerState).toHaveBeenCalledWith(3, undefined, expect.anything());
 
-    innerState.resetHistory();
-    outerState.resetHistory();
+    resetMocks();
 
     store.dispatch.inc();
 
-    t.ok(outerState.calledOnce);
-    t.same(outerState.firstCall.args[0], { inner: 4, x: 0 });
+    expect(outerState).toBeCalled();
+    expect(outerState).toBeCalledWith(
+        { inner: 4, x: 0 },
+        expect.anything(),
+        expect.anything()
+    );
 
-    t.ok(innerState.calledOnce);
-    t.same(innerState.firstCall.args[0], 4);
+    expect(innerState).toBeCalledWith(4, 3, expect.anything());
 
-    await t.test('state of subdux doesnt change', async (t) => {
-        innerState.resetHistory();
-        outerState.resetHistory();
-        store.dispatch.incOuter();
+    // state of subdux doesnt change
+    resetMocks();
 
-        t.ok(outerState.calledOnce);
-        t.notOk(innerState.called);
-    });
+    store.dispatch.incOuter();
+
+    expect(outerState).toBeCalled();
+    expect(innerState).not.toBeCalled();
 });