diff --git a/src/library-list.js b/src/library-list.js
index e19b6d4..dd7172a 100644
--- a/src/library-list.js
+++ b/src/library-list.js
@@ -15,6 +15,13 @@ window.jsLibs = [
 		label: 'Bootstrap 4α',
 		type: 'js'
 	},
+	{
+		url:
+			'https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/js/bootstrap.min.js',
+		label: 'Bootstrap 4β',
+		type: 'js'
+	},
+	
 	{
 		url:
 			'https://cdnjs.cloudflare.com/ajax/libs/foundation/6.3.1/js/foundation.min.js',
@@ -87,6 +94,12 @@ window.cssLibs = [
 		label: 'Bootstrap 4α',
 		type: 'css'
 	},
+	{
+		url:
+			'https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css',
+		label: 'Bootstrap 4β',
+		type: 'css'
+	},
 	{
 		url: 'https://cdnjs.cloudflare.com/ajax/libs/bulma/0.4.2/css/bulma.min.css',
 		label: 'Bulma',