diff --git a/layout/_scripts/index.njk b/layout/_scripts/index.njk
index c41ce1b..70e6e44 100644
--- a/layout/_scripts/index.njk
+++ b/layout/_scripts/index.njk
@@ -15,4 +15,3 @@
 {%- if theme.pjax %}
   {% include 'pjax.njk' %}
 {%- endif %}
-{% include 'three.njk' %}
diff --git a/layout/_scripts/three.njk b/layout/_scripts/three.njk
deleted file mode 100644
index fa1c7c3..0000000
--- a/layout/_scripts/three.njk
+++ /dev/null
@@ -1,16 +0,0 @@
-{%- if theme.three.enable %}
-  {%- set three_uri = theme.vendors.three or next_vendors('three/three.min.js') %}
-  <script defer src="{{ three_uri }}"></script>
-  {%- if theme.three.three_waves %}
-    {%- set waves_uri = theme.vendors.three_waves or next_vendors('three/three-waves.min.js') %}
-    <script defer src="{{ waves_uri }}"></script>
-  {%- endif %}
-  {%- if theme.three.canvas_lines %}
-    {%- set lines_uri = theme.vendors.canvas_lines or next_vendors('three/canvas_lines.min.js') %}
-    <script defer src="{{ lines_uri }}"></script>
-  {%- endif %}
-  {%- if theme.three.canvas_sphere %}
-    {%- set sphere_uri = theme.vendors.canvas_sphere or next_vendors('three/canvas_sphere.min.js') %}
-    <script defer src="{{ sphere_uri }}"></script>
-  {%- endif %}
-{%- endif %}
diff --git a/layout/_scripts/vendors.njk b/layout/_scripts/vendors.njk
index 5465785..6f316ea 100644
--- a/layout/_scripts/vendors.njk
+++ b/layout/_scripts/vendors.njk
@@ -1,30 +1,18 @@
-{%- set js_vendors = {} %}
-{%- set js_vendors = js_vendors | attr('anime', 'anime.min.js') %}
-
-{%- if theme.pjax %}
-  {%- set js_vendors = js_vendors | attr('pjax', 'pjax/pjax.min.js') %}
-{%- endif %}
-
-{%- if theme.fancybox %}
-  {%- set js_vendors = js_vendors | attr('jquery', '//cdn.jsdelivr.net/npm/jquery@3/dist/jquery.min.js') %}
-  {%- set js_vendors = js_vendors | attr('fancybox', '//cdn.jsdelivr.net/gh/fancyapps/fancybox@3/dist/jquery.fancybox.min.js') %}
-{%- endif %}
-
-{%- if theme.mediumzoom %}
-  {%- set js_vendors = js_vendors | attr('mediumzoom', '//cdn.jsdelivr.net/npm/medium-zoom@1/dist/medium-zoom.min.js') %}
-{%- endif %}
-
-{%- if theme.lazyload %}
-  {%- set js_vendors = js_vendors | attr('lazyload', '//cdn.jsdelivr.net/npm/lozad@1/dist/lozad.min.js') %}
-{%- endif %}
-
-{%- if theme.pangu %}
-  {%- set js_vendors = js_vendors | attr('pangu', '//cdn.jsdelivr.net/npm/pangu@4/dist/browser/pangu.min.js') %}
-{%- endif %}
-
-{%- if theme.motion.enable %}
-  {%- set js_vendors = js_vendors | attr('velocity', 'velocity/velocity.min.js') %}
-  {%- set js_vendors = js_vendors | attr('velocity_ui', 'velocity/velocity.ui.min.js') %}
+{%- if theme.three.enable %}
+  {%- set three_uri = theme.vendors.three or next_vendors('three/three.min.js') %}
+  <script defer src="{{ three_uri }}"></script>
+  {%- if theme.three.three_waves %}
+    {%- set waves_uri = theme.vendors.three_waves or next_vendors('three/three-waves.min.js') %}
+    <script defer src="{{ waves_uri }}"></script>
+  {%- endif %}
+  {%- if theme.three.canvas_lines %}
+    {%- set lines_uri = theme.vendors.canvas_lines or next_vendors('three/canvas_lines.min.js') %}
+    <script defer src="{{ lines_uri }}"></script>
+  {%- endif %}
+  {%- if theme.three.canvas_sphere %}
+    {%- set sphere_uri = theme.vendors.canvas_sphere or next_vendors('three/canvas_sphere.min.js') %}
+    <script defer src="{{ sphere_uri }}"></script>
+  {%- endif %}
 {%- endif %}
 
 {%- if theme.canvas_ribbon.enable %}
@@ -32,7 +20,7 @@
   <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 %}
+{%- for name, internal in js_vendors() %}
   {%- set internal_script = next_vendors(internal) %}
   <script src="{{ theme.vendors[name] or internal_script }}"></script>
 {%- endfor %}
diff --git a/scripts/helpers/next-vendors.js b/scripts/helpers/next-vendors.js
new file mode 100644
index 0000000..9355a3f
--- /dev/null
+++ b/scripts/helpers/next-vendors.js
@@ -0,0 +1,31 @@
+/* global hexo */
+
+'use strict';
+
+hexo.extend.helper.register('js_vendors', function() {
+  let { theme } = this;
+  let vendors = {
+    anime: 'anime.min.js'
+  };
+  if (theme.pjax) {
+    vendors.pjax = 'pjax/pjax.min.js';
+  }
+  if (theme.fancybox) {
+    vendors.jquery = '//cdn.jsdelivr.net/npm/jquery@3/dist/jquery.min.js';
+    vendors.fancybox = '//cdn.jsdelivr.net/gh/fancyapps/fancybox@3/dist/jquery.fancybox.min.js';
+  }
+  if (theme.mediumzoom) {
+    vendors.mediumzoom = '//cdn.jsdelivr.net/npm/medium-zoom@1/dist/medium-zoom.min.js';
+  }
+  if (theme.lazyload) {
+    vendors.lazyload = '//cdn.jsdelivr.net/npm/lozad@1/dist/lozad.min.js';
+  }
+  if (theme.pangu) {
+    vendors.pangu = '//cdn.jsdelivr.net/npm/pangu@4/dist/browser/pangu.min.js';
+  }
+  if (theme.motion.enable) {
+    vendors.velocity = 'velocity/velocity.min.js';
+    vendors.velocity_ui = 'velocity/velocity.ui.min.js';
+  }
+  return vendors;
+});
diff --git a/scripts/renderer.js b/scripts/renderer.js
index 9dbef15..3c74894 100644
--- a/scripts/renderer.js
+++ b/scripts/renderer.js
@@ -10,10 +10,6 @@ function njkCompile(data) {
   const env = nunjucks.configure(templateDir, {
     autoescape: false
   });
-  env.addFilter('attr', (dictionary, key, value) => {
-    dictionary[key] = value;
-    return dictionary;
-  });
   env.addFilter('json', dictionary => {
     if (typeof dictionary !== 'undefined' && dictionary !== null) {
       return JSON.stringify(dictionary);