diff --git a/packages/next/edge/index.ts b/packages/next/edge/index.ts
index 4efa7954..c28a70b9 100644
--- a/packages/next/edge/index.ts
+++ b/packages/next/edge/index.ts
@@ -114,7 +114,7 @@ export default class LogtoClient extends BaseClient {
 
     this.storage = new CookieStorage({
       encryptionKey: this.config.cookieSecret,
-      cookieKey: `logto:${this.config.appId}`,
+      cookieKey: `logto_${this.config.appId}`,
       isSecure: this.config.cookieSecure,
       getCookie: (name) => {
         return cookies.get(name)?.value ?? '';
diff --git a/packages/next/server-actions/client.ts b/packages/next/server-actions/client.ts
index 305a6a35..418ea782 100644
--- a/packages/next/server-actions/client.ts
+++ b/packages/next/server-actions/client.ts
@@ -106,7 +106,7 @@ export default class LogtoClient extends BaseClient {
     const { cookies } = await import('next/headers');
     this.storage = new CookieStorage({
       encryptionKey: this.config.cookieSecret,
-      cookieKey: `logto:${this.config.appId}`,
+      cookieKey: `_${this.config.appId}`,
       isSecure: this.config.cookieSecure,
       getCookie: (...args) => {
         return cookies().get(...args)?.value ?? '';
diff --git a/packages/next/src/index.ts b/packages/next/src/index.ts
index 07d62a9e..f3c95cf3 100644
--- a/packages/next/src/index.ts
+++ b/packages/next/src/index.ts
@@ -205,7 +205,7 @@ export default class LogtoClient extends LogtoNextBaseClient {
   ): Promise<NodeClient> {
     this.storage = new CookieStorage({
       encryptionKey: this.config.cookieSecret,
-      cookieKey: `logto:${this.config.appId}`,
+      cookieKey: `logto_${this.config.appId}`,
       isSecure: this.config.cookieSecure,
       getCookie: (name) => {
         return request.cookies[name] ?? '';