diff --git a/_config.yml b/_config.yml
index 43a412204f..450d985dc4 100644
--- a/_config.yml
+++ b/_config.yml
@@ -1047,7 +1047,7 @@ vendors:
   # pjax: //cdn.jsdelivr.net/gh/theme-next/theme-next-pjax@0/pjax.min.js
   pjax:
 
-  # Internal version: 2.1.5 & 3.5.7
+  # FancyBox
   # Example:
   # fancybox: //cdn.jsdelivr.net/gh/fancyapps/fancybox@3/dist/jquery.fancybox.min.js
   # fancybox: //cdnjs.cloudflare.com/ajax/libs/fancybox/3.5.7/jquery.fancybox.min.js
@@ -1056,24 +1056,24 @@ vendors:
   fancybox:
   fancybox_css:
 
-  # Internal version: 1.0.4
+  # Medium-zoom
   # Example:
   # mediumzoom: //cdn.jsdelivr.net/npm/medium-zoom@1/dist/medium-zoom.min.js
   mediumzoom:
 
-  # Internal version: 1.10.0
+  # Lazyload
   # Example:
   # lazyload: //cdn.jsdelivr.net/npm/lozad@1/dist/lozad.min.js
   # lazyload: //cdnjs.cloudflare.com/ajax/libs/lozad.js/1.9.0/lozad.min.js
   lazyload:
 
-  # Internal version: 4.0.7
+  # Pangu
   # Example:
   # pangu: //cdn.jsdelivr.net/npm/pangu@4/dist/browser/pangu.min.js
   # pangu: //cdnjs.cloudflare.com/ajax/libs/pangu/4.0.7/pangu.min.js
   pangu:
 
-  # Internal version: 1.0.0
+  # Quicklink
   # Example:
   # quicklink: //cdn.jsdelivr.net/npm/quicklink@1/dist/quicklink.umd.js
   quicklink:
@@ -1090,13 +1090,13 @@ vendors:
   disqusjs_js:
   disqusjs_css:
 
-  # valine
+  # Valine
   # Example:
   # valine: //cdn.jsdelivr.net/npm/valine@1/dist/Valine.min.js
   # valine: //cdnjs.cloudflare.com/ajax/libs/valine/1.3.4/Valine.min.js
   valine:
 
-  # gitalk
+  # Gitalk
   # Example:
   # gitalk_js: //cdn.jsdelivr.net/npm/gitalk@1/dist/gitalk.min.js
   # gitalk_css: //cdn.jsdelivr.net/npm/gitalk@1/dist/gitalk.css
@@ -1117,9 +1117,9 @@ vendors:
   needmoreshare2_js:
   needmoreshare2_css:
 
-  # Internal version: 2.10.4
+  # Algolia Search
   # Example:
-  # algolia_instant_js: //cdn.jsdelivr.net/npm/instantsearch.js@2/dist/instantsearch.js
+  # algolia_instant_js: //cdn.jsdelivr.net/npm/instantsearch.js@2/dist/instantsearch.min.js
   # algolia_instant_css: //cdn.jsdelivr.net/npm/instantsearch.js@2/dist/instantsearch.min.css
   algolia_instant_js:
   algolia_instant_css:
diff --git a/layout/_partials/head/head.swig b/layout/_partials/head/head.swig
index f1012b2d66..832dee312d 100644
--- a/layout/_partials/head/head.swig
+++ b/layout/_partials/head/head.swig
@@ -49,11 +49,11 @@
 
 {{ next_font() }}
 
-{%- set font_awesome_uri = theme.vendors.fontawesome | default(url_for(theme.vendors._internal + '/font-awesome/css/font-awesome.min.css?v=4.7.0')) %}
+{%- set font_awesome_uri = theme.vendors.fontawesome | default(next_vendors('font-awesome/css/font-awesome.min.css?v=4.7.0')) %}
 <link rel="stylesheet" href="{{ font_awesome_uri }}">
 
 {%- if theme.fancybox %}
-  {%- set fancybox_css_uri = theme.vendors.fancybox_css | default(url_for(theme.vendors._internal + '/fancybox/source/jquery.fancybox.css')) %}
+  {%- set fancybox_css_uri = theme.vendors.fancybox_css | default(next_vendors('//cdn.jsdelivr.net/gh/fancyapps/fancybox@3/dist/jquery.fancybox.min.css')) %}
   <link rel="stylesheet" href="{{ fancybox_css_uri }}">
 {%- endif %}
 
@@ -63,13 +63,13 @@
 {%- endif %}
 
 {%- if theme.needmoreshare2.enable %}
-  {%- set needmoreshare2_css_uri = theme.vendors.needmoreshare2_css | default(url_for(theme.vendors._internal + '/needsharebutton/needsharebutton.css')) %}
+  {%- set needmoreshare2_css_uri = theme.vendors.needmoreshare2_css | default(next_vendors('needsharebutton/needsharebutton.css')) %}
   <link rel="stylesheet" href="{{ needmoreshare2_css_uri }}">
 {%- endif %}
 
 {%- if theme.pace.enable %}
-  {%- set pace_css_uri = theme.vendors.pace_css | default(url_for(theme.vendors._internal + '/pace/pace-theme-' + theme.pace.theme + '.min.css?v=1.0.2')) %}
-  {%- set pace_js_uri = theme.vendors.pace | default(url_for(theme.vendors._internal + '/pace/pace.min.js?v=1.0.2')) %}
+  {%- set pace_css_uri = theme.vendors.pace_css | default(next_vendors('pace/pace-theme-' + theme.pace.theme + '.min.css?v=1.0.2')) %}
+  {%- set pace_js_uri = theme.vendors.pace | default(next_vendors('pace/pace.min.js?v=1.0.2')) %}
   <link rel="stylesheet" href="{{ pace_css_uri }}">
   <script src="{{ pace_js_uri }}"></script>
 {%- endif %}
diff --git a/layout/_partials/share/needsharebutton.swig b/layout/_partials/share/needsharebutton.swig
index a183a69f52..616a9cff9f 100644
--- a/layout/_partials/share/needsharebutton.swig
+++ b/layout/_partials/share/needsharebutton.swig
@@ -6,7 +6,7 @@
   </div>
 {%- endif %}
 
-{%- set needmoreshare2_js_uri = theme.vendors.needmoreshare2_js | default(url_for(theme.vendors._internal + '/needsharebutton/needsharebutton.js')) %}
+{%- set needmoreshare2_js_uri = theme.vendors.needmoreshare2_js | default(next_vendors('needsharebutton/needsharebutton.js')) %}
 <script src="{{ needmoreshare2_js_uri }}"></script>
 <script>
   {%- if theme.needmoreshare2.postbottom.enable %}
diff --git a/layout/_scripts/three.swig b/layout/_scripts/three.swig
index bb3d20656d..64ea2e8ca3 100644
--- a/layout/_scripts/three.swig
+++ b/layout/_scripts/three.swig
@@ -1,16 +1,16 @@
 {%- if theme.three.enable and theme.three.delay %}
-  {%- set three_uri = theme.vendors.three | default(url_for(theme.vendors._internal + '/three/three.min.js')) %}
+  {%- set three_uri = theme.vendors.three | default(next_vendors('three/three.min.js')) %}
 
   {%- if theme.three.three_waves %}
-    {%- set waves_uri = theme.vendors.three_waves | default(url_for(theme.vendors._internal + '/three/three-waves.min.js')) %}
+    {%- set waves_uri = theme.vendors.three_waves | default(next_vendors('three/three-waves.min.js')) %}
   {%- endif %}
 
   {%- if theme.three.canvas_lines %}
-    {%- set lines_uri = theme.vendors.canvas_lines | default(url_for(theme.vendors._internal + '/three/canvas_lines.min.js')) %}
+    {%- set lines_uri = theme.vendors.canvas_lines | default(next_vendors('three/canvas_lines.min.js')) %}
   {%- endif %}
 
   {%- if theme.three.canvas_sphere %}
-    {%- set sphere_uri = theme.vendors.canvas_sphere | default(url_for(theme.vendors._internal + '/three/canvas_sphere.min.js')) %}
+    {%- set sphere_uri = theme.vendors.canvas_sphere | default(next_vendors('three/canvas_sphere.min.js')) %}
   {%- endif %}
 
   <script>
diff --git a/layout/_scripts/vendors.swig b/layout/_scripts/vendors.swig
index 2b460573fb..b4b925f49b 100644
--- a/layout/_scripts/vendors.swig
+++ b/layout/_scripts/vendors.swig
@@ -7,19 +7,19 @@
 {%- endif %}
 
 {%- if theme.fancybox %}
-  {%- set js_vendors.fancybox = 'fancybox/source/jquery.fancybox.pack.js' %}
+  {%- set js_vendors.fancybox = '//cdn.jsdelivr.net/gh/fancyapps/fancybox@3/dist/jquery.fancybox.min.js' %}
 {%- endif %}
 
 {%- if theme.mediumzoom %}
-  {%- set js_vendors.mediumzoom = 'mediumzoom/medium-zoom.min.js' %}
+  {%- set js_vendors.mediumzoom = '//cdn.jsdelivr.net/npm/medium-zoom@1/dist/medium-zoom.min.js' %}
 {%- endif %}
 
 {%- if theme.lazyload %}
-  {%- set js_vendors.lazyload = 'lazyload/lozad.min.js?v=1.10.0' %}
+  {%- set js_vendors.lazyload = '//cdn.jsdelivr.net/npm/lozad@1/dist/lozad.min.js' %}
 {%- endif %}
 
 {%- if theme.pangu %}
-  {%- set js_vendors.pangu = 'pangu/dist/pangu.min.js?v=4.0.7' %}
+  {%- set js_vendors.pangu = '//cdn.jsdelivr.net/npm/pangu@4/dist/browser/pangu.min.js' %}
 {%- endif %}
 
 {%- if theme.motion.enable %}
@@ -44,24 +44,24 @@
 
 {%- if theme.canvas_nest.enable %}
   {%- if theme.canvas_nest.onmobile %}
-    {%- set canvas_nest_uri = theme.vendors.canvas_nest | default(url_for(theme.vendors._internal + '/canvas-nest/canvas-nest.min.js')) %}
+    {%- set canvas_nest_uri = theme.vendors.canvas_nest | default(next_vendors('canvas-nest/canvas-nest.min.js')) %}
   {% else %}
-    {%- set canvas_nest_uri = theme.vendors.canvas_nest_nomobile | default(url_for(theme.vendors._internal + '/canvas-nest/canvas-nest-nomobile.min.js')) %}
+    {%- set canvas_nest_uri = theme.vendors.canvas_nest_nomobile | default(next_vendors('canvas-nest/canvas-nest-nomobile.min.js')) %}
   {%- endif %}
   <script color='{{ theme.canvas_nest.color }}' opacity='{{ theme.canvas_nest.opacity }}' zIndex='{{ theme.canvas_nest.zIndex }}' count='{{ theme.canvas_nest.count }}' src="{{ canvas_nest_uri }}"></script>
 {%- endif %}
 
 {%- if theme.canvas_ribbon.enable %}
-  {%- set canvas_ribbon_uri = theme.vendors.canvas_ribbon | default(url_for(theme.vendors._internal + '/canvas-ribbon/canvas-ribbon.js')) %}
+  {%- set canvas_ribbon_uri = theme.vendors.canvas_ribbon | default(next_vendors('canvas-ribbon/canvas-ribbon.js')) %}
   <script size="{{ theme.canvas_ribbon.size }}" alpha="{{ theme.canvas_ribbon.alpha }}" zIndex="{{theme.canvas_ribbon.zIndex }}" src="{{ canvas_ribbon_uri }}"></script>
 {%- endif %}
 
 {%- for name, internal in js_vendors %}
-  {%- set internal_script = url_for(theme.vendors._internal + '/' + internal) %}
+  {%- set internal_script = next_vendors(internal) %}
   <script src="{{ theme.vendors[name] | default(internal_script) }}"></script>
 {%- endfor %}
 
 {%- for name, internal in js_defer_vendors %}
-  {%- set internal_script = url_for(theme.vendors._internal + '/' + internal) %}
+  {%- set internal_script = next_vendors(internal) %}
   <script defer src="{{ theme.vendors[name] | default(internal_script) }}"></script>
 {%- endfor %}
diff --git a/layout/_third-party/bookmark.swig b/layout/_third-party/bookmark.swig
index 655e923a80..89a7b1335d 100644
--- a/layout/_third-party/bookmark.swig
+++ b/layout/_third-party/bookmark.swig
@@ -1,5 +1,5 @@
 {%- if theme.bookmark.enable %}
-  {%- set bookmark_uri = theme.vendors.bookmark | default(url_for(theme.vendors._internal + '/bookmark/bookmark.min.js?v=1.0')) %}
+  {%- set bookmark_uri = theme.vendors.bookmark | default(next_vendors('bookmark/bookmark.min.js?v=1.0')) %}
   <script src="{{ bookmark_uri }}"></script>
   <script{{ pjax }}>
   if (CONFIG.page.isPost) {
diff --git a/layout/_third-party/quicklink.swig b/layout/_third-party/quicklink.swig
index 4c02a3090d..6fb5d862a4 100644
--- a/layout/_third-party/quicklink.swig
+++ b/layout/_third-party/quicklink.swig
@@ -1,5 +1,5 @@
 {%- if theme.quicklink.enable %}
-  {%- set quicklink_uri = theme.vendors.quicklink | default(url_for(theme.vendors._internal + '/quicklink/quicklink.umd.js')) %}
+  {%- set quicklink_uri = theme.vendors.quicklink | default(next_vendors('//cdn.jsdelivr.net/npm/quicklink@1/dist/quicklink.umd.js')) %}
 
   {%- if is_home() %}
     {%- if theme.quicklink.home %}
diff --git a/layout/_third-party/search/algolia-search.swig b/layout/_third-party/search/algolia-search.swig
index 4cc6005f9c..06b74adbb2 100644
--- a/layout/_third-party/search/algolia-search.swig
+++ b/layout/_third-party/search/algolia-search.swig
@@ -1,5 +1,5 @@
-{%- set algolia_instant_css_uri = theme.vendors.algolia_instant_css | default(url_for(theme.vendors._internal + '/algolia-instant-search/instantsearch.min.css')) %}
-{%- set algolia_instant_js_uri = theme.vendors.algolia_instant_js | default(url_for(theme.vendors._internal + '/algolia-instant-search/instantsearch.min.js')) %}
+{%- set algolia_instant_css_uri = theme.vendors.algolia_instant_css | default(next_vendors('//cdn.jsdelivr.net/npm/instantsearch.js@2/dist/instantsearch.min.css')) %}
+{%- set algolia_instant_js_uri = theme.vendors.algolia_instant_js | default(next_vendors('//cdn.jsdelivr.net/npm/instantsearch.js@2/dist/instantsearch.min.js')) %}
 <link rel="stylesheet" href="{{ algolia_instant_css_uri }}">
 <script src="{{ algolia_instant_js_uri }}"></script>
 
diff --git a/scripts/helpers/next-vendors.js b/scripts/helpers/next-vendors.js
new file mode 100644
index 0000000000..b5c7fbd81d
--- /dev/null
+++ b/scripts/helpers/next-vendors.js
@@ -0,0 +1,9 @@
+/* global hexo */
+
+'use strict';
+
+hexo.extend.helper.register('next_vendors', function(url) {
+  if (url.startsWith('//')) return url;
+  let internal = hexo.theme.config.vendors._internal;
+  return this.url_for(`${internal}/${url}`);
+});