diff --git a/package-lock.json b/package-lock.json
index 86fa0de..a1d4fd1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1933,12 +1933,6 @@
         "@types/babel-types": "*"
       }
     },
-    "@types/bluebird": {
-      "version": "3.5.29",
-      "resolved": "https://registry.npmjs.org/@types/bluebird/-/bluebird-3.5.29.tgz",
-      "integrity": "sha512-kmVtnxTuUuhCET669irqQmPAez4KFnFVKvpleVRyfC3g+SHD1hIkFZcWLim9BVcwUBLO59o8VZE4yGCmTif8Yw==",
-      "dev": true
-    },
     "@types/body-parser": {
       "version": "1.17.1",
       "resolved": "https://registry.npmjs.org/@types/body-parser/-/body-parser-1.17.1.tgz",
@@ -2076,6 +2070,12 @@
       "integrity": "sha512-Il2DtDVRGDcqjDtE+rF8iqg1CArehSK84HZJCT7AMITlyXRBpuPhqGLDQMowraqqu1coEaimg4ZOqggt6L6L+A==",
       "dev": true
     },
+    "@types/lodash": {
+      "version": "4.14.147",
+      "resolved": "https://registry.npmjs.org/@types/lodash/-/lodash-4.14.147.tgz",
+      "integrity": "sha512-+0zY1Axql6ru5T85Rh6aR6Zr0xT7c0USLqsHv01b3ID//dOrV3OvpXJGjm69+4QpxoZ0oMNEfmW1ltwXe2WVzQ==",
+      "dev": true
+    },
     "@types/mime": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/@types/mime/-/mime-2.0.1.tgz",
@@ -2266,12 +2266,6 @@
         "@types/superagent": "*"
       }
     },
-    "@types/underscore": {
-      "version": "1.9.3",
-      "resolved": "https://registry.npmjs.org/@types/underscore/-/underscore-1.9.3.tgz",
-      "integrity": "sha512-SwbHKB2DPIDlvYqtK5O+0LFtZAyrUSw4c0q+HWwmH1Ve3KMQ0/5PlV3RX97+3dP7yMrnNQ8/bCWWvQpPl03Mug==",
-      "dev": true
-    },
     "@types/uuid": {
       "version": "3.4.6",
       "resolved": "https://registry.npmjs.org/@types/uuid/-/uuid-3.4.6.tgz",
@@ -3396,11 +3390,6 @@
         "inherits": "~2.0.0"
       }
     },
-    "bluebird": {
-      "version": "3.5.3",
-      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.3.tgz",
-      "integrity": "sha512-/qKPUQlaW1OyR51WeCPBvRnAlnZFUJkCSG5HzGnuIqhgyJtF+T94lFnn33eiazjRm2LAHVy2guNnaq48X9SJuw=="
-    },
     "bn.js": {
       "version": "4.11.8",
       "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.8.tgz",
@@ -12654,11 +12643,6 @@
         }
       }
     },
-    "seamless-immutable": {
-      "version": "7.1.4",
-      "resolved": "https://registry.npmjs.org/seamless-immutable/-/seamless-immutable-7.1.4.tgz",
-      "integrity": "sha512-XiUO1QP4ki4E2PHegiGAlu6r82o5A+6tRh7IkGGTVg/h+UoeX4nFBeCGPOhb4CYjvkqsfm/TUtvOMYC1xmV30A=="
-    },
     "semver": {
       "version": "5.6.0",
       "resolved": "https://registry.npmjs.org/semver/-/semver-5.6.0.tgz",
@@ -14029,11 +14013,6 @@
         "debug": "^2.2.0"
       }
     },
-    "underscore": {
-      "version": "1.9.1",
-      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.9.1.tgz",
-      "integrity": "sha512-5/4etnCkd9c8gwgowi5/om/mYO5ajCaOgdzj/oW+0eQV9WxKBDZw5+ycmKmeaTXjInS/W0BzpGLo2xR2aBwZdg=="
-    },
     "unicode-canonical-property-names-ecmascript": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-1.0.4.tgz",
diff --git a/package.json b/package.json
index addc991..995fde1 100644
--- a/package.json
+++ b/package.json
@@ -51,11 +51,9 @@
   "author": "Jerko Steiner",
   "license": "MIT",
   "dependencies": {
-    "bluebird": "^3.3.4",
     "classnames": "^2.2.5",
     "config": "^3.0.0",
     "express": "^4.13.3",
-    "prop-types": "^15.5.10",
     "pug": "^2.0.0-rc.2",
     "react": "^16.6.3",
     "react-dom": "^16.6.3",
@@ -64,11 +62,9 @@
     "redux-logger": "^3.0.6",
     "redux-promise-middleware": "^5.1.1",
     "redux-thunk": "^2.2.0",
-    "seamless-immutable": "^7.1.2",
     "simple-peer": "^9.1.2",
     "socket.io": "^2.2.0",
     "socket.io-client": "^2.2.0",
-    "underscore": "^1.8.3",
     "uuid": "^3.3.2"
   },
   "devDependencies": {
@@ -78,12 +74,12 @@
     "@babel/polyfill": "^7.4.4",
     "@babel/preset-env": "^7.5.0",
     "@babel/preset-react": "^7.0.0",
-    "@types/bluebird": "^3.5.29",
     "@types/classnames": "^2.2.9",
     "@types/config": "0.0.36",
     "@types/debug": "^4.1.5",
     "@types/express": "^4.17.2",
     "@types/jest": "^24.0.23",
+    "@types/lodash": "^4.14.147",
     "@types/node": "^12.12.7",
     "@types/react": "^16.9.11",
     "@types/react-dom": "^16.9.4",
@@ -97,7 +93,6 @@
     "@types/socket.io": "^2.1.4",
     "@types/socket.io-client": "^1.4.32",
     "@types/supertest": "^2.0.8",
-    "@types/underscore": "^1.9.3",
     "@types/uuid": "^3.4.6",
     "@typescript-eslint/eslint-plugin": "^2.7.0",
     "@typescript-eslint/parser": "^2.7.0",
@@ -116,6 +111,7 @@
     "eslint-plugin-standard": "^4.0.0",
     "jest": "^24.9.0",
     "jest-cli": "^24.8.0",
+    "lodash": "^4.17.15",
     "node-sass": "^4.13.0",
     "nodemon": "^1.18.8",
     "react-transition-group": "^2.5.1",
diff --git a/src/client/actions/NotifyActions.ts b/src/client/actions/NotifyActions.ts
index fb9d14f..3b10653 100644
--- a/src/client/actions/NotifyActions.ts
+++ b/src/client/actions/NotifyActions.ts
@@ -1,6 +1,6 @@
+import uniqueId from 'lodash/uniqueId'
+import { Dispatch } from 'redux'
 import * as constants from '../constants'
-import { Dispatch  } from 'redux'
-import _ from 'underscore'
 import { ThunkResult } from '../store'
 
 const TIMEOUT = 5000
@@ -16,7 +16,7 @@ export type NotifyType = 'info' | 'warning' | 'error'
 function notify(dispatch: Dispatch, type: NotifyType, args: string[]) {
   const string = args[0] || ''
   const message = format(string, Array.prototype.slice.call(args, 1))
-  const id = _.uniqueId('notification')
+  const id = uniqueId('notification')
   const payload: Notification = { id, type, message }
 
   setTimeout(() => {
diff --git a/src/client/actions/PeerActions.ts b/src/client/actions/PeerActions.ts
index 70539ba..502dcbb 100644
--- a/src/client/actions/PeerActions.ts
+++ b/src/client/actions/PeerActions.ts
@@ -3,7 +3,7 @@ import * as NotifyActions from '../actions/NotifyActions'
 import * as StreamActions from '../actions/StreamActions'
 import * as constants from '../constants'
 import Peer from 'simple-peer'
-import _ from 'underscore'
+import forEach from 'lodash/forEach'
 import _debug from 'debug'
 import { play, iceServers } from '../window'
 import { Dispatch, GetState } from '../store'
@@ -215,7 +215,7 @@ export const sendMessage = (message: Message) =>
   const { peers } = getState()
   debug('Sending message type: %s to %s peers.',
     message.type, Object.keys(peers).length)
-  _.each(peers, (peer, userId) => {
+  forEach(peers, (peer, userId) => {
     switch (message.type) {
       case 'file':
         dispatch(ChatActions.addMessage({
diff --git a/src/client/actions/SocketActions.ts b/src/client/actions/SocketActions.ts
index 7fb67c4..f164465 100644
--- a/src/client/actions/SocketActions.ts
+++ b/src/client/actions/SocketActions.ts
@@ -1,7 +1,7 @@
 import * as NotifyActions from '../actions/NotifyActions'
 import * as PeerActions from '../actions/PeerActions'
 import * as constants from '../constants'
-import _ from 'underscore'
+import keyBy from 'lodash/keyBy'
 import _debug from 'debug'
 import { SignalData } from 'simple-peer'
 import { Dispatch, GetState } from '../store'
@@ -62,8 +62,8 @@ class SocketHandler {
       stream,
     })(dispatch, getState))
 
-    const newUsersMap = _.indexBy(users, 'id')
-    _.keys(peers)
+    const newUsersMap = keyBy(users, 'id')
+    Object.keys(peers)
     .filter(id => !newUsersMap[id])
     .forEach(id => peers[id].destroy())
   }
diff --git a/src/client/components/App.tsx b/src/client/components/App.tsx
index a80e7d6..ae32a06 100644
--- a/src/client/components/App.tsx
+++ b/src/client/components/App.tsx
@@ -1,6 +1,6 @@
+import map from 'lodash/map'
 import React from 'react'
 import Peer from 'simple-peer'
-import _ from 'underscore'
 import { Message } from '../actions/ChatActions'
 import { Alert, Notification } from '../actions/NotifyActions'
 import { TextMessage } from '../actions/PeerActions'
@@ -99,7 +99,7 @@ export default class App extends React.PureComponent<AppProps, AppState> {
             mirrored
           />
 
-          {_.map(peers, (_, userId) => (
+          {map(peers, (_, userId) => (
             <Video
               active={userId === active}
               key={userId}
diff --git a/src/client/reducers/alerts.test.ts b/src/client/reducers/alerts.test.ts
index 16df75f..5d69830 100644
--- a/src/client/reducers/alerts.test.ts
+++ b/src/client/reducers/alerts.test.ts
@@ -1,8 +1,8 @@
 import * as NotifyActions from '../actions/NotifyActions'
-import _ from 'underscore'
 import { applyMiddleware, createStore, Store, bindActionCreators } from 'redux'
 import { create } from '../middlewares'
 import reducers from './index'
+import values from 'lodash/values'
 
 jest.useFakeTimers()
 
@@ -76,7 +76,7 @@ describe('reducers/alerts', () => {
       })
 
       it('adds a notification', () => {
-        expect(_.values(store.getState().notifications)).toEqual([{
+        expect(values(store.getState().notifications)).toEqual([{
           id: jasmine.any(String),
           message: 'Hi John!',
           type,
diff --git a/src/client/reducers/peers.ts b/src/client/reducers/peers.ts
index 5eb5e6f..82c91eb 100644
--- a/src/client/reducers/peers.ts
+++ b/src/client/reducers/peers.ts
@@ -1,7 +1,8 @@
-import * as constants from '../constants'
-import _ from 'underscore'
+import forEach from 'lodash/forEach'
+import omit from 'lodash/omit'
 import Peer from 'simple-peer'
 import { PeerAction } from '../actions/PeerActions'
+import * as constants from '../constants'
 
 export type PeersState = Record<string, Peer.Instance>
 
@@ -18,9 +19,9 @@ export default function peers(
         [action.payload.userId]: action.payload.peer,
       }
     case constants.PEER_REMOVE:
-      return _.omit(state, [action.payload.userId])
+      return omit(state, [action.payload.userId])
     case constants.PEERS_DESTROY:
-      _.each(state, peer => peer.destroy())
+      forEach(state, peer => peer.destroy())
       return defaultState
     default:
       return state
diff --git a/src/client/reducers/streams.ts b/src/client/reducers/streams.ts
index f3fc926..f7e0199 100644
--- a/src/client/reducers/streams.ts
+++ b/src/client/reducers/streams.ts
@@ -1,8 +1,8 @@
-import _ from 'underscore'
-import { createObjectURL, revokeObjectURL } from '../window'
 import _debug from 'debug'
-import { AddStreamPayload, AddStreamAction, RemoveStreamAction, StreamAction } from '../actions/StreamActions'
+import omit from 'lodash/omit'
+import { AddStreamAction, AddStreamPayload, RemoveStreamAction, StreamAction } from '../actions/StreamActions'
 import { STREAM_ADD, STREAM_REMOVE } from '../constants'
+import { createObjectURL, revokeObjectURL } from '../window'
 
 const debug = _debug('peercalls')
 const defaultState = Object.freeze({})
@@ -24,10 +24,10 @@ function addStream (state: StreamsState, action: AddStreamAction) {
   const { userId, stream } = action.payload
   return Object.freeze({
     ...state,
-    [userId]: Object.freeze({
+    [userId]: {
       mediaStream: stream,
       url: safeCreateObjectURL(stream),
-    }),
+    },
   })
 }
 
@@ -37,7 +37,7 @@ function removeStream (state: StreamsState, action: RemoveStreamAction) {
   if (stream && stream.url) {
     revokeObjectURL(stream.url)
   }
-  return Object.freeze(_.omit(state, [userId]))
+  return omit(state, [userId])
 }
 
 export default function streams (state = defaultState, action: StreamAction) {
diff --git a/src/server/socket.ts b/src/server/socket.ts
index 55760ad..64d7d0e 100644
--- a/src/server/socket.ts
+++ b/src/server/socket.ts
@@ -1,6 +1,6 @@
 'use strict'
 import _debug from 'debug'
-import _ from 'underscore'
+import map from 'lodash/map'
 import { Socket, Server } from 'socket.io'
 
 const debug = _debug('peercalls:socket')
@@ -34,7 +34,7 @@ export default function handleSocket(socket: SocketWithRoom, io: Server) {
   })
 
   function getUsers (roomName: string) {
-    return _.map(io.sockets.adapter.rooms[roomName].sockets, (_, id) => {
+    return map(io.sockets.adapter.rooms[roomName].sockets, (_, id) => {
       return { id }
     })
   }