diff --git a/js/preload/preloadMain.js b/js/preload/preloadMain.js
index 03e3b9c0c..d818c7ce6 100644
--- a/js/preload/preloadMain.js
+++ b/js/preload/preloadMain.js
@@ -86,10 +86,6 @@ const throttledSetIsInMeetingStatus = throttle(1000, function (isInMeeting) {
 local.ipcRenderer.on('on-page-load', () => {
     snackBar = new SnackBar();
 
-    // Enable spellchecker only for main window until
-    // the underline memory leak is fixed on electron
-    // https://github.com/electron/electron/issues/15459
-    if (window.name === 'main') {
         webFrame.setSpellCheckProvider('en-US', true, {
             spellCheck (text) {
                 return !local.ipcRenderer.sendSync(apiName, {
@@ -98,7 +94,6 @@ local.ipcRenderer.on('on-page-load', () => {
                 });
             }
         });
-    }
 
     // only registers main window's preload
     if (window.name === 'main') {
diff --git a/package.json b/package.json
index 830eb0806..686b00b86 100644
--- a/package.json
+++ b/package.json
@@ -87,7 +87,7 @@
     "browserify": "16.2.3",
     "chromedriver": "2.45.0",
     "cross-env": "5.2.0",
-    "electron": "4.0.4",
+    "electron": "4.0.5",
     "electron-builder": "20.38.4",
     "electron-builder-squirrel-windows": "20.38.3",
     "electron-chromedriver": "4.0.0-beta.1",