diff --git a/packages/redux-devtools-dock-monitor/.babelrc b/packages/redux-devtools-dock-monitor/.babelrc
index 2d8ea82b..0d42ef44 100644
--- a/packages/redux-devtools-dock-monitor/.babelrc
+++ b/packages/redux-devtools-dock-monitor/.babelrc
@@ -1,7 +1,8 @@
 {
-  "presets": ["@babel/preset-env", "@babel/preset-react"],
-  "plugins": [
-    "@babel/plugin-proposal-class-properties",
-    "@babel/plugin-proposal-export-default-from"
-  ]
+  "presets": [
+    "@babel/preset-env",
+    "@babel/preset-react",
+    "@babel/preset-typescript"
+  ],
+  "plugins": ["@babel/plugin-proposal-class-properties"]
 }
diff --git a/packages/redux-devtools-dock-monitor/.eslintignore b/packages/redux-devtools-dock-monitor/.eslintignore
new file mode 100644
index 00000000..a65b4177
--- /dev/null
+++ b/packages/redux-devtools-dock-monitor/.eslintignore
@@ -0,0 +1 @@
+lib
diff --git a/packages/redux-devtools-dock-monitor/.eslintrc.js b/packages/redux-devtools-dock-monitor/.eslintrc.js
new file mode 100644
index 00000000..e98ddf18
--- /dev/null
+++ b/packages/redux-devtools-dock-monitor/.eslintrc.js
@@ -0,0 +1,13 @@
+module.exports = {
+  extends: '../../.eslintrc',
+  overrides: [
+    {
+      files: ['*.ts', '*.tsx'],
+      extends: '../../eslintrc.ts.react.base.json',
+      parserOptions: {
+        tsconfigRootDir: __dirname,
+        project: ['./tsconfig.json'],
+      },
+    },
+  ],
+};
diff --git a/packages/redux-devtools-dock-monitor/package.json b/packages/redux-devtools-dock-monitor/package.json
index 5bb00580..e53a621a 100644
--- a/packages/redux-devtools-dock-monitor/package.json
+++ b/packages/redux-devtools-dock-monitor/package.json
@@ -2,21 +2,6 @@
   "name": "redux-devtools-dock-monitor",
   "version": "1.1.4",
   "description": "A resizable and movable dock for Redux DevTools monitors",
-  "main": "lib/index.js",
-  "files": [
-    "lib",
-    "src"
-  ],
-  "scripts": {
-    "clean": "rimraf lib",
-    "build": "babel src --out-dir lib",
-    "prepare": "npm run build",
-    "prepublishOnly": "npm run test && npm run clean && npm run build"
-  },
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/reduxjs/redux-devtools.git"
-  },
   "keywords": [
     "redux",
     "devtools",
@@ -26,31 +11,50 @@
     "time travel",
     "live edit"
   ],
-  "author": "Dan Abramov <dan.abramov@me.com> (http://github.com/gaearon)",
-  "license": "MIT",
+  "homepage": "https://github.com/reduxjs/redux-devtools/tree/master/packages/redux-devtools-dock-monitor",
   "bugs": {
     "url": "https://github.com/reduxjs/redux-devtools/issues"
   },
-  "homepage": "https://github.com/reduxjs/redux-devtools",
-  "devDependencies": {
-    "@babel/cli": "^7.10.5",
-    "@babel/core": "^7.11.1",
-    "@babel/plugin-proposal-class-properties": "^7.10.4",
-    "@babel/plugin-proposal-export-default-from": "^7.10.4",
-    "@babel/preset-env": "^7.11.0",
-    "@babel/preset-react": "^7.10.4",
-    "babel-loader": "^8.1.0",
-    "rimraf": "^3.0.2"
+  "license": "MIT",
+  "author": "Dan Abramov <dan.abramov@me.com> (http://github.com/gaearon)",
+  "files": [
+    "lib",
+    "src"
+  ],
+  "main": "lib/index.js",
+  "types": "lib/index.d.ts",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/reduxjs/redux-devtools.git"
   },
-  "peerDependencies": {
-    "react": "^0.14.9 || ^15.3.0 || ^16.0.0",
-    "redux-devtools": "^3.4.0"
+  "scripts": {
+    "build": "npm run build:types && npm run build:js",
+    "build:types": "tsc --emitDeclarationOnly",
+    "build:js": "babel src --out-dir lib --extensions \".ts,.tsx\" --source-maps inline",
+    "clean": "rimraf lib",
+    "lint": "eslint . --ext .ts,.tsx",
+    "lint:fix": "eslint . --ext .ts,.tsx --fix",
+    "type-check": "tsc --noEmit",
+    "type-check:watch": "npm run type-check -- --watch",
+    "preversion": "npm run type-check && npm run lint && npm run test",
+    "prepublishOnly": "npm run clean && npm run build"
   },
   "dependencies": {
-    "babel-runtime": "^6.26.0",
+    "@types/prop-types": "^15.7.3",
     "parse-key": "^0.2.1",
     "prop-types": "^15.7.2",
-    "react-dock": "^0.2.4",
-    "react-pure-render": "^1.0.2"
+    "react-dock": "^0.2.4"
+  },
+  "devDependencies": {
+    "@types/react": "^16.9.46",
+    "react": "^16.13.1",
+    "redux": "^4.0.5",
+    "redux-devtools": "^3.6.1"
+  },
+  "peerDependencies": {
+    "@types/react": "^16.3.18",
+    "react": "^16.3.0",
+    "redux": "^3.4.0 || ^4.0.0",
+    "redux-devtools": "^3.4.0"
   }
 }
diff --git a/packages/redux-devtools-dock-monitor/src/DockMonitor.js b/packages/redux-devtools-dock-monitor/src/DockMonitor.tsx
similarity index 64%
rename from packages/redux-devtools-dock-monitor/src/DockMonitor.js
rename to packages/redux-devtools-dock-monitor/src/DockMonitor.tsx
index 99427463..0849c70f 100644
--- a/packages/redux-devtools-dock-monitor/src/DockMonitor.js
+++ b/packages/redux-devtools-dock-monitor/src/DockMonitor.tsx
@@ -1,17 +1,49 @@
 import React, { cloneElement, Children, Component } from 'react';
 import PropTypes from 'prop-types';
 import Dock from 'react-dock';
+import { Action, Dispatch } from 'redux';
+import { LiftedState, Monitor } from 'redux-devtools';
 import { POSITIONS } from './constants';
 import {
   toggleVisibility,
   changeMonitor,
   changePosition,
   changeSize,
+  DockMonitorAction,
 } from './actions';
-import reducer from './reducers';
+import reducer, { DockMonitorState } from './reducers';
 import parseKey from 'parse-key';
 
-export default class DockMonitor extends Component {
+interface KeyObject {
+  name: string;
+  ctrl: boolean;
+  meta: boolean;
+  shift: boolean;
+  alt: boolean;
+  sequence: string;
+}
+
+export interface DockMonitorProps<S, A extends Action<unknown>>
+  extends LiftedState<S, A, DockMonitorState> {
+  defaultPosition: 'left' | 'top' | 'right' | 'bottom';
+  defaultIsVisible: boolean;
+  defaultSize: number;
+  toggleVisibilityKey: string;
+  changePositionKey: string;
+  changeMonitorKey?: string;
+  fluid: boolean;
+
+  dispatch: Dispatch<DockMonitorAction>;
+
+  children:
+    | Monitor<S, A, LiftedState<S, A, unknown>, unknown, Action<unknown>>
+    | Monitor<S, A, LiftedState<S, A, unknown>, unknown, Action<unknown>>[];
+}
+
+export default class DockMonitor<
+  S,
+  A extends Action<unknown>
+> extends Component<DockMonitorProps<S, A>> {
   static update = reducer;
 
   static propTypes = {
@@ -39,10 +71,8 @@ export default class DockMonitor extends Component {
     fluid: true,
   };
 
-  constructor(props) {
+  constructor(props: DockMonitorProps<S, A>) {
     super(props);
-    this.handleKeyDown = this.handleKeyDown.bind(this);
-    this.handleSizeChange = this.handleSizeChange.bind(this);
 
     const childrenCount = Children.count(props.children);
     if (childrenCount === 0) {
@@ -71,7 +101,7 @@ export default class DockMonitor extends Component {
     window.removeEventListener('keydown', this.handleKeyDown);
   }
 
-  matchesKey(key, event) {
+  matchesKey(key: KeyObject | undefined, event: KeyboardEvent) {
     if (!key) {
       return false;
     }
@@ -87,17 +117,17 @@ export default class DockMonitor extends Component {
     );
   }
 
-  handleKeyDown(e) {
+  handleKeyDown = (e: KeyboardEvent) => {
     // Ignore regular keys when focused on a field
     // and no modifiers are active.
     if (
       !e.ctrlKey &&
       !e.metaKey &&
       !e.altKey &&
-      (e.target.tagName === 'INPUT' ||
-        e.target.tagName === 'SELECT' ||
-        e.target.tagName === 'TEXTAREA' ||
-        e.target.isContentEditable)
+      ((e.target! as { tagName?: string }).tagName === 'INPUT' ||
+        (e.target! as { tagName?: string }).tagName === 'SELECT' ||
+        (e.target! as { tagName?: string }).tagName === 'TEXTAREA' ||
+        (e.target! as { isContentEditable?: boolean }).isContentEditable)
     ) {
       return;
     }
@@ -120,13 +150,20 @@ export default class DockMonitor extends Component {
       e.preventDefault();
       this.props.dispatch(changeMonitor());
     }
-  }
+  };
 
-  handleSizeChange(requestedSize) {
+  handleSizeChange = (requestedSize: number) => {
     this.props.dispatch(changeSize(requestedSize));
-  }
+  };
 
-  renderChild(child, index, otherProps) {
+  renderChild(
+    child: Monitor<S, A, LiftedState<S, A, unknown>, unknown, Action<unknown>>,
+    index: number,
+    otherProps: Omit<
+      DockMonitorProps<S, A>,
+      'monitorState' | 'children' | 'fluid'
+    >
+  ) {
     const { monitorState } = this.props;
     const { childMonitorIndex, childMonitorStates } = monitorState;
 
@@ -153,8 +190,23 @@ export default class DockMonitor extends Component {
         onSizeChange={this.handleSizeChange}
         dimMode="none"
       >
-        {Children.map(children, (child, index) =>
-          this.renderChild(child, index, rest)
+        {Children.map(
+          children as
+            | Monitor<
+                S,
+                A,
+                LiftedState<S, A, unknown>,
+                unknown,
+                Action<unknown>
+              >
+            | Monitor<
+                S,
+                A,
+                LiftedState<S, A, unknown>,
+                unknown,
+                Action<unknown>
+              >[],
+          (child, index) => this.renderChild(child, index, rest)
         )}
       </Dock>
     );
diff --git a/packages/redux-devtools-dock-monitor/src/actions.js b/packages/redux-devtools-dock-monitor/src/actions.js
deleted file mode 100644
index d253293c..00000000
--- a/packages/redux-devtools-dock-monitor/src/actions.js
+++ /dev/null
@@ -1,20 +0,0 @@
-export const TOGGLE_VISIBILITY =
-  '@@redux-devtools-log-monitor/TOGGLE_VISIBILITY';
-export function toggleVisibility() {
-  return { type: TOGGLE_VISIBILITY };
-}
-
-export const CHANGE_POSITION = '@@redux-devtools-log-monitor/CHANGE_POSITION';
-export function changePosition() {
-  return { type: CHANGE_POSITION };
-}
-
-export const CHANGE_SIZE = '@@redux-devtools-log-monitor/CHANGE_SIZE';
-export function changeSize(size) {
-  return { type: CHANGE_SIZE, size: size };
-}
-
-export const CHANGE_MONITOR = '@@redux-devtools-log-monitor/CHANGE_MONITOR';
-export function changeMonitor() {
-  return { type: CHANGE_MONITOR };
-}
diff --git a/packages/redux-devtools-dock-monitor/src/actions.ts b/packages/redux-devtools-dock-monitor/src/actions.ts
new file mode 100644
index 00000000..42db490e
--- /dev/null
+++ b/packages/redux-devtools-dock-monitor/src/actions.ts
@@ -0,0 +1,39 @@
+export const TOGGLE_VISIBILITY =
+  '@@redux-devtools-log-monitor/TOGGLE_VISIBILITY';
+interface ToggleVisibilityAction {
+  type: typeof TOGGLE_VISIBILITY;
+}
+export function toggleVisibility(): ToggleVisibilityAction {
+  return { type: TOGGLE_VISIBILITY };
+}
+
+export const CHANGE_POSITION = '@@redux-devtools-log-monitor/CHANGE_POSITION';
+interface ChangePositionAction {
+  type: typeof CHANGE_POSITION;
+}
+export function changePosition(): ChangePositionAction {
+  return { type: CHANGE_POSITION };
+}
+
+export const CHANGE_SIZE = '@@redux-devtools-log-monitor/CHANGE_SIZE';
+interface ChangeSizeAction {
+  type: typeof CHANGE_SIZE;
+  size: number;
+}
+export function changeSize(size: number): ChangeSizeAction {
+  return { type: CHANGE_SIZE, size: size };
+}
+
+export const CHANGE_MONITOR = '@@redux-devtools-log-monitor/CHANGE_MONITOR';
+interface ChangeMonitorAction {
+  type: typeof CHANGE_MONITOR;
+}
+export function changeMonitor(): ChangeMonitorAction {
+  return { type: CHANGE_MONITOR };
+}
+
+export type DockMonitorAction =
+  | ToggleVisibilityAction
+  | ChangePositionAction
+  | ChangeSizeAction
+  | ChangeMonitorAction;
diff --git a/packages/redux-devtools-dock-monitor/src/constants.js b/packages/redux-devtools-dock-monitor/src/constants.js
deleted file mode 100644
index e935427f..00000000
--- a/packages/redux-devtools-dock-monitor/src/constants.js
+++ /dev/null
@@ -1 +0,0 @@
-export const POSITIONS = ['left', 'top', 'right', 'bottom'];
diff --git a/packages/redux-devtools-dock-monitor/src/constants.ts b/packages/redux-devtools-dock-monitor/src/constants.ts
new file mode 100644
index 00000000..38c503d4
--- /dev/null
+++ b/packages/redux-devtools-dock-monitor/src/constants.ts
@@ -0,0 +1 @@
+export const POSITIONS = ['left', 'top', 'right', 'bottom'] as const;
diff --git a/packages/redux-devtools-dock-monitor/src/index.js b/packages/redux-devtools-dock-monitor/src/index.js
deleted file mode 100644
index 5b553f1d..00000000
--- a/packages/redux-devtools-dock-monitor/src/index.js
+++ /dev/null
@@ -1 +0,0 @@
-export default from './DockMonitor';
diff --git a/packages/redux-devtools-dock-monitor/src/index.ts b/packages/redux-devtools-dock-monitor/src/index.ts
new file mode 100644
index 00000000..c950ac82
--- /dev/null
+++ b/packages/redux-devtools-dock-monitor/src/index.ts
@@ -0,0 +1,2 @@
+import DockMonitor from './DockMonitor';
+export default DockMonitor;
diff --git a/packages/redux-devtools-dock-monitor/src/parse-key.ts b/packages/redux-devtools-dock-monitor/src/parse-key.ts
new file mode 100644
index 00000000..e3cda606
--- /dev/null
+++ b/packages/redux-devtools-dock-monitor/src/parse-key.ts
@@ -0,0 +1,12 @@
+declare module 'parse-key' {
+  interface KeyObject {
+    name: string;
+    ctrl: boolean;
+    meta: boolean;
+    shift: boolean;
+    alt: boolean;
+    sequence: string;
+  }
+
+  export default function parse(s: string): KeyObject;
+}
diff --git a/packages/redux-devtools-dock-monitor/src/reducers.js b/packages/redux-devtools-dock-monitor/src/reducers.ts
similarity index 52%
rename from packages/redux-devtools-dock-monitor/src/reducers.js
rename to packages/redux-devtools-dock-monitor/src/reducers.ts
index ff28f53e..eb2e4d91 100644
--- a/packages/redux-devtools-dock-monitor/src/reducers.js
+++ b/packages/redux-devtools-dock-monitor/src/reducers.ts
@@ -1,33 +1,64 @@
+import { Children } from 'react';
+import { Action } from 'redux';
 import {
   CHANGE_MONITOR,
   CHANGE_POSITION,
   CHANGE_SIZE,
+  DockMonitorAction,
   TOGGLE_VISIBILITY,
 } from './actions';
 import { POSITIONS } from './constants';
-import { Children } from 'react';
+import { DockMonitorProps } from './DockMonitor';
 
-function position(props, state = props.defaultPosition, action) {
+export interface DockMonitorState {
+  position: 'left' | 'top' | 'right' | 'bottom';
+  size: number;
+  isVisible: boolean;
+  childMonitorStates: unknown[];
+  childMonitorIndex: number;
+}
+
+function position<S, A extends Action<unknown>>(
+  props: DockMonitorProps<S, A>,
+  state = props.defaultPosition,
+  action: DockMonitorAction
+) {
   return action.type === CHANGE_POSITION
     ? POSITIONS[(POSITIONS.indexOf(state) + 1) % POSITIONS.length]
     : state;
 }
 
-function size(props, state = props.defaultSize, action) {
+function size<S, A extends Action<unknown>>(
+  props: DockMonitorProps<S, A>,
+  state = props.defaultSize,
+  action: DockMonitorAction
+) {
   return action.type === CHANGE_SIZE ? action.size : state;
 }
 
-function isVisible(props, state = props.defaultIsVisible, action) {
+function isVisible<S, A extends Action<unknown>>(
+  props: DockMonitorProps<S, A>,
+  state = props.defaultIsVisible,
+  action: DockMonitorAction
+) {
   return action.type === TOGGLE_VISIBILITY ? !state : state;
 }
 
-function childMonitorStates(props, state = [], action) {
+function childMonitorStates<S, A extends Action<unknown>>(
+  props: DockMonitorProps<S, A>,
+  state: unknown[] = [],
+  action: DockMonitorAction
+) {
   return Children.map(props.children, (child, index) =>
     child.type.update(child.props, state[index], action)
   );
 }
 
-function childMonitorIndex(props, state = 0, action) {
+function childMonitorIndex<S, A extends Action<unknown>>(
+  props: DockMonitorProps<S, A>,
+  state = 0,
+  action: DockMonitorAction
+) {
   switch (action.type) {
     case CHANGE_MONITOR:
       return (state + 1) % Children.count(props.children);
@@ -36,14 +67,22 @@ function childMonitorIndex(props, state = 0, action) {
   }
 }
 
-export default function reducer(props, state = {}, action) {
+export default function reducer<S, A extends Action<unknown>>(
+  props: DockMonitorProps<S, A>,
+  state: Partial<DockMonitorState> = {},
+  action: DockMonitorAction
+): DockMonitorState {
   if (!state.childMonitorStates) {
     Children.forEach(props.children, (child, index) => {
       if (typeof child.type.update !== 'function') {
         // eslint-disable-next-line no-console
         console.error(
           `Child of <DockMonitor> with the index ${index} ` +
-            `(${child.type.displayName || child.type.name || child.type}) ` +
+            `(${
+              child.type.displayName ||
+              child.type.name ||
+              ((child.type as unknown) as string)
+            }) ` +
             'does not appear to be a valid Redux DevTools monitor.'
         );
       }
diff --git a/packages/redux-devtools-dock-monitor/tsconfig.json b/packages/redux-devtools-dock-monitor/tsconfig.json
new file mode 100644
index 00000000..7b7d1492
--- /dev/null
+++ b/packages/redux-devtools-dock-monitor/tsconfig.json
@@ -0,0 +1,7 @@
+{
+  "extends": "../../tsconfig.react.base.json",
+  "compilerOptions": {
+    "outDir": "lib"
+  },
+  "include": ["src"]
+}