diff --git a/src/lib/util.ts b/src/lib/util.ts
index c305465..90fdc5a 100644
--- a/src/lib/util.ts
+++ b/src/lib/util.ts
@@ -72,3 +72,7 @@ export const parseResponse = (responseBody: string, splitter = ':') => {
   }
   return res
 }
+
+export const base64Decode = (input: string) => {
+  return Buffer.from(input, 'base64').toString('utf8')
+}
diff --git a/src/routes/comments/account/get.ts b/src/routes/comments/account/get.ts
index f7bed57..f9be6f7 100644
--- a/src/routes/comments/account/get.ts
+++ b/src/routes/comments/account/get.ts
@@ -1,5 +1,10 @@
 import axios from 'axios'
-import { jsonResponse, parseResponse, splitGd } from '../../../lib/util'
+import {
+  base64Decode,
+  jsonResponse,
+  parseResponse,
+  splitGd
+} from '../../../lib/util'
 import { Context } from 'elysia'
 
 export const handler = async (handler: Context) => {
@@ -43,7 +48,7 @@ export const handler = async (handler: Context) => {
         date: commentInfo['9'] + ' ago'
       }
       try {
-        data.content = atob(data.content)
+        data.content = base64Decode(data.content)
       } catch {
         data.decodeFailed = true
       }
diff --git a/src/routes/comments/account/history/get.ts b/src/routes/comments/account/history/get.ts
index 75b0e22..cdbc479 100644
--- a/src/routes/comments/account/history/get.ts
+++ b/src/routes/comments/account/history/get.ts
@@ -1,5 +1,5 @@
 import axios from 'axios'
-import { jsonResponse, parseResponse } from '../../../../lib/util'
+import { base64Decode, jsonResponse, parseResponse } from '../../../../lib/util'
 import { Context } from 'elysia'
 
 export const handler = async (handler: Context) => {
@@ -66,7 +66,7 @@ export const handler = async (handler: Context) => {
         }
       }
       try {
-        data.content = atob(data.content)
+        data.content = base64Decode(data.content)
       } catch {
         data.decodeFailed = true
       }
diff --git a/src/routes/comments/level/get.ts b/src/routes/comments/level/get.ts
index d219f8c..dde0cbe 100644
--- a/src/routes/comments/level/get.ts
+++ b/src/routes/comments/level/get.ts
@@ -1,5 +1,10 @@
 import axios from 'axios'
-import { jsonResponse, parseResponse, splitGd } from '../../../lib/util'
+import {
+  base64Decode,
+  jsonResponse,
+  parseResponse,
+  splitGd
+} from '../../../lib/util'
 import { Context } from 'elysia'
 
 export const handler = async (handler: Context) => {
@@ -66,7 +71,7 @@ export const handler = async (handler: Context) => {
         }
       }
       try {
-        data.content = atob(data.content)
+        data.content = base64Decode(data.content)
       } catch {
         data.decodeFailed = true
       }