diff --git a/CHANGELOG.md b/CHANGELOG.md
index e9f7e50..9b97791 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,8 +2,15 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
-## [2.1.0](https://github.com/yanick/updux/compare/v2.0.0...v2.1.0) (2020-06-19)
+## 3.0.0 (2021-05-02)
 
+### ⚠ BREAKING CHANGES
+
+* Upgrade to Typescript 4.
+* Switch from 'updeep' to '@yanick/updeep'.
+
+
+## [2.1.0](https://github.com/yanick/updux/compare/v2.0.0...v2.1.0) (2020-06-19)
 
 ### Features
 
@@ -11,7 +18,6 @@ All notable changes to this project will be documented in this file. See [standa
 
 ## [2.0.0](https://github.com/yanick/updux/compare/v1.2.0...v2.0.0) (2020-06-13)
 
-
 ### ⚠ BREAKING CHANGES
 
 * use ts-action for action creation
diff --git a/package.json b/package.json
index aba1aa8..d3550a3 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
         "redux": "^4.0.5",
         "ts-action": "^11.0.0",
         "ts-node": "^8.6.2",
-        "updeep": "^1.2.0"
+        "@yanick/updeep": "^2.2.0"
     },
     "devDependencies": {
         "@babel/cli": "^7.8.4",
@@ -34,7 +34,7 @@
         "tsd": "^0.11.0",
         "typedoc": "0.17.7",
         "typedoc-plugin-markdown": "^2.2.17",
-        "typescript": "^3.8.3"
+        "typescript": "^4.2.0"
     },
     "license": "MIT",
     "main": "dist/index.js",
@@ -47,7 +47,7 @@
         "lint": "prettier -c --",
         "lint:fix": "prettier --write --"
     },
-    "version": "2.1.0",
+    "version": "3.0.0",
     "repository": {
         "type": "git",
         "url": "git+https://github.com/yanick/updux.git"
diff --git a/src/buildInitial/index.ts b/src/buildInitial/index.ts
index 1c38393..3ecf225 100644
--- a/src/buildInitial/index.ts
+++ b/src/buildInitial/index.ts
@@ -1,5 +1,5 @@
 import fp from 'lodash/fp';
-import u from 'updeep';
+import u from '@yanick/updeep';
 
 function buildInitial(initial: any, coduxes: any = [], subduxes: any = {}) {
     if (!fp.isPlainObject(initial)) return initial;
diff --git a/src/buildMutations/index.ts b/src/buildMutations/index.ts
index bdea378..86ec3fe 100644
--- a/src/buildMutations/index.ts
+++ b/src/buildMutations/index.ts
@@ -1,5 +1,5 @@
 import fp from 'lodash/fp';
-import u from 'updeep';
+import u from '@yanick/updeep';
 import {
     Mutation,
     Action,
diff --git a/src/mappedUpdux.test.ts b/src/mappedUpdux.test.ts
index 274a313..81cff5a 100644
--- a/src/mappedUpdux.test.ts
+++ b/src/mappedUpdux.test.ts
@@ -1,5 +1,5 @@
 import Updux from './updux';
-import u from 'updeep';
+import u from '@yanick/updeep';
 import tap from 'tap';
 
 const todo: any = new Updux<any>({
diff --git a/src/middleware.test.ts b/src/middleware.test.ts
index 5dc73ab..de30a7e 100644
--- a/src/middleware.test.ts
+++ b/src/middleware.test.ts
@@ -1,4 +1,4 @@
-import u from 'updeep';
+import u from '@yanick/updeep';
 import { action } from 'ts-action';
 import tap from 'tap';
 import sinon from 'sinon';
diff --git a/src/mutations.test.ts b/src/mutations.test.ts
index 2c57e9c..76085c2 100644
--- a/src/mutations.test.ts
+++ b/src/mutations.test.ts
@@ -2,7 +2,7 @@ import { action, empty } from 'ts-action';
 import Updux, { dux } from '.';
 import tap from 'tap';
 
-import u from 'updeep';
+import u from '@yanick/updeep';
 
 tap.test('as array of arrays', async t => {
     const doIt = action('doIt');
diff --git a/src/splat.test.ts b/src/splat.test.ts
index 3c2ac7c..0c90cf3 100644
--- a/src/splat.test.ts
+++ b/src/splat.test.ts
@@ -1,6 +1,6 @@
 import tap from 'tap';
 import Updux, {dux} from '.';
-import u from 'updeep';
+import u from '@yanick/updeep';
 import { expectType } from 'tsd';
 
 const tracer = (chr: string) => u({ tracer: (s = '') => s + chr });
diff --git a/src/subscriptions.test.ts b/src/subscriptions.test.ts
index 56da93b..682d0bc 100644
--- a/src/subscriptions.test.ts
+++ b/src/subscriptions.test.ts
@@ -1,7 +1,7 @@
 import tap from 'tap';
 import Updux from '.';
 import { action, payload } from 'ts-action';
-import u from 'updeep';
+import u from '@yanick/updeep';
 
 const inc = action('inc');
 const set_double = action('set_double', payload<number>());
diff --git a/src/test.ts b/src/test.ts
index b351d6d..84b1251 100644
--- a/src/test.ts
+++ b/src/test.ts
@@ -1,5 +1,5 @@
 import Updux, {dux} from '.';
-import u from 'updeep';
+import u from '@yanick/updeep';
 import { action, payload } from 'ts-action';
 import tap from 'tap';
 
diff --git a/src/types.ts b/src/types.ts
index b522cf0..4b79384 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -318,7 +318,7 @@ export type Dux<S = unknown, A = unknown, X = unknown, C = unknown> = {
  * ```
  * import Updux from 'updux';
  * import { actions, payload } from 'ts-action';
- * import u from 'updeep';
+ * import u from '@yanick/updeep';
  *
  * const todoUpdux = new Updux({
  *     initial: {
diff --git a/src/updux.ts b/src/updux.ts
index 2cec98b..863d342 100644
--- a/src/updux.ts
+++ b/src/updux.ts
@@ -275,7 +275,7 @@ export class Updux<
      * ```
      * import todo from './todo'; // updux for a single todo
      * import Updux from 'updux';
-     * import u from 'updeep';
+     * import u from '@yanick/updeep';
      *
      * const todos = new Updux({ initial: [], subduxes: { '*': todo } });
      * todos.addMutation(
@@ -370,7 +370,7 @@ export class Updux<
      */
     get asDux() {
         return {
-            createStore: this.createStore,
+            createStore: this.createStore.bind(this),
             upreducer: this.upreducer,
             subduxes: this.subduxes,
             coduxes: this.coduxes,