diff --git a/lib/routes/bilibili/cache.ts b/lib/routes/bilibili/cache.ts
index 7e4c4951caf697..a4a43e83ecda6e 100644
--- a/lib/routes/bilibili/cache.ts
+++ b/lib/routes/bilibili/cache.ts
@@ -15,7 +15,7 @@ const getCookie = () => {
         for (const key of Object.keys(config.bilibili.cookies)) {
             const cookie = config.bilibili.cookies[key];
             if (cookie) {
-                const updatedCookie = cookie.replace(/b_lsid=[0-9A-F]+_[0-9A-F]+/, `b_lsid=${generateBLsid()}`);
+                const updatedCookie = cookie.replace(/b_lsid=[0-9A-F]+_[0-9A-F]+/, `b_lsid=${utils.lsid()}`);
                 config.bilibili.cookies[key] = updatedCookie;
             }
         }
@@ -34,7 +34,7 @@ const getCookie = () => {
                     const cookies = await page.cookies();
                     let cookieString = cookies.map((cookie) => `${cookie.name}=${cookie.value}`).join('; ');
 
-                    cookieString = cookieString.replace(/b_lsid=[0-9A-F]+_[0-9A-F]+/, `b_lsid=${generateBLsid()}`);
+                    cookieString = cookieString.replace(/b_lsid=[0-9A-F]+_[0-9A-F]+/, `b_lsid=${utils.lsid()}`);
                     resolve(cookieString);
                 }
             });
@@ -47,12 +47,6 @@ const getCookie = () => {
     });
 };
 
-const generateBLsid = () => {
-    const randomString = Array.from({ length: 8 }, () => '0123456789ABCDEF'[Math.floor(Math.random() * 16)]).join('');
-    const timestamp = Date.now();
-    return `${randomString}_${timestamp.toString(16).toUpperCase()}`;
-};
-
 const clearCookie = () => {
     cache.set('bili-cookie');
     disableConfigCookie = true;