diff --git a/scripts/events/lib/config.js b/scripts/events/lib/config.js
index 9066734..17aeb4c 100644
--- a/scripts/events/lib/config.js
+++ b/scripts/events/lib/config.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const merge = require('hexo-util').deepMerge || require('lodash/merge');
+const merge = require('hexo-util').deepMerge;
 
 module.exports = hexo => {
   const data = hexo.locals.get('data');
diff --git a/source/js/next-boot.js b/source/js/next-boot.js
index 9888830..6262daa 100644
--- a/source/js/next-boot.js
+++ b/source/js/next-boot.js
@@ -16,32 +16,9 @@ NexT.boot.registerEvents = function() {
     document.body.classList.toggle('site-nav-on');
   });
 
-  const duration = 200;
   document.querySelectorAll('.sidebar-nav li').forEach((element, index) => {
     element.addEventListener('click', () => {
-      if (element.matches('.sidebar-toc-active .sidebar-nav-toc, .sidebar-overview-active .sidebar-nav-overview')) return;
-      const sidebar = document.querySelector('.sidebar-inner');
-      const panel = document.querySelector('.sidebar-panel-container');
-      const activeClassName = ['sidebar-toc-active', 'sidebar-overview-active'];
-
-      window.anime({
-        duration,
-        targets   : panel,
-        easing    : 'linear',
-        opacity   : 0,
-        translateY: [0, -20],
-        complete  : () => {
-          // Prevent adding TOC to Overview if Overview was selected when close & open sidebar.
-          sidebar.classList.replace(activeClassName[1 - index], activeClassName[index]);
-          window.anime({
-            duration,
-            targets   : panel,
-            easing    : 'linear',
-            opacity   : [0, 1],
-            translateY: [-20, 0]
-          });
-        }
-      });
+      NexT.utils.activateSidebarPanel(index);
     });
   });
 
diff --git a/source/js/pjax.js b/source/js/pjax.js
index 9f65a71..5126b29 100644
--- a/source/js/pjax.js
+++ b/source/js/pjax.js
@@ -27,6 +27,6 @@ document.addEventListener('pjax:success', () => {
   }
   const hasTOC = document.querySelector('.post-toc');
   document.querySelector('.sidebar-inner').classList.toggle('sidebar-nav-active', hasTOC);
-  document.querySelector(hasTOC ? '.sidebar-nav-toc' : '.sidebar-nav-overview').click();
+  NexT.utils.activateSidebarPanel(hasTOC ? 0 : 1);
   NexT.utils.updateSidebarPosition();
 });
diff --git a/source/js/utils.js b/source/js/utils.js
index ab207f4..76d95f6 100644
--- a/source/js/utils.js
+++ b/source/js/utils.js
@@ -305,6 +305,34 @@ NexT.utils = {
     }
   },
 
+  activateSidebarPanel: function(index) {
+    const duration = 200;
+    const sidebar = document.querySelector('.sidebar-inner');
+    const panel = document.querySelector('.sidebar-panel-container');
+    const activeClassName = ['sidebar-toc-active', 'sidebar-overview-active'];
+
+    if (sidebar.classList.contains(activeClassName[index])) return;
+
+    window.anime({
+      duration,
+      targets   : panel,
+      easing    : 'linear',
+      opacity   : 0,
+      translateY: [0, -20],
+      complete  : () => {
+        // Prevent adding TOC to Overview if Overview was selected when close & open sidebar.
+        sidebar.classList.replace(activeClassName[1 - index], activeClassName[index]);
+        window.anime({
+          duration,
+          targets   : panel,
+          easing    : 'linear',
+          opacity   : [0, 1],
+          translateY: [-20, 0]
+        });
+      }
+    });
+  },
+
   getScript: function(src, options = {}, legacyCondition) {
     if (typeof options === 'function') {
       return this.getScript(src, {