diff --git a/.eslintrc.js b/.eslintrc.js
index d1cac5f6..0050bc4b 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -94,7 +94,6 @@ module.exports = {
               'devtron',
               'electron',
               'electron-devtools-installer',
-              'electron-is-dev',
               'ember-electron',
             ],
           },
diff --git a/forge/files/src/index.js b/forge/files/src/index.js
index c5b5d151..de1c58ef 100644
--- a/forge/files/src/index.js
+++ b/forge/files/src/index.js
@@ -6,7 +6,6 @@ const {
 const { pathToFileURL } = require('url');
 const { app, BrowserWindow } = require('electron');
 const path = require('path');
-const isDev = require('electron-is-dev');
 const handleFileUrls = require('./handle-file-urls');
 
 const emberAppDir = path.resolve(__dirname, '..', 'ember-dist');
@@ -32,7 +31,7 @@ app.on('window-all-closed', () => {
 });
 
 app.on('ready', async () => {
-  if (isDev) {
+  if (app.isPackaged) {
     try {
       require('devtron').install();
     } catch (err) {
diff --git a/forge/template.js b/forge/template.js
index d535b3ef..b05bfbdd 100644
--- a/forge/template.js
+++ b/forge/template.js
@@ -65,7 +65,7 @@ class EmberElectronTemplates extends BaseTemplate {
     return ['devtron'];
   }
   get dependencies() {
-    return ['electron-devtools-installer', 'electron-is-dev'];
+    return ['electron-devtools-installer'];
   }
 
   async initializeTemplate(dir) {
diff --git a/node-tests/acceptance/end-to-end-test.js b/node-tests/acceptance/end-to-end-test.js
index d563b766..1eaf9493 100644
--- a/node-tests/acceptance/end-to-end-test.js
+++ b/node-tests/acceptance/end-to-end-test.js
@@ -30,7 +30,7 @@ function run(cmd, args, opts = {}) {
 }
 
 describe('end-to-end', function () {
-  this.timeout(10 * 60 * 1000);
+  this.timeout(10 * 120 * 1000);
 
   let oldEnv;
   let rootDir = process.cwd();
diff --git a/node-tests/fixtures/ember-test/test-index-extra.js b/node-tests/fixtures/ember-test/test-index-extra.js
index cdcd3a19..39e8650c 100644
--- a/node-tests/fixtures/ember-test/test-index-extra.js
+++ b/node-tests/fixtures/ember-test/test-index-extra.js
@@ -2,7 +2,7 @@
 // to make sure we don't have naming conflicts with already-declared variables
 function testIndexExtra() {
   // Make sure dependencies (node_modules) are loadable
-  require('electron-is-dev');
+  require('electron-devtools-installer');
 
   // Make sure local libraries are loadable
   const helper = require('../src/helper');