diff --git a/src/CenterMentor/centermentor.schema.ts b/src/CenterMentor/centermentor.schema.ts
index 2d5c9cf..9b55cc0 100644
--- a/src/CenterMentor/centermentor.schema.ts
+++ b/src/CenterMentor/centermentor.schema.ts
@@ -1,14 +1,11 @@
 import { Inject, Injectable } from '@nestjs/common'
-import {
-  Pothos,
-  PothosRef,
-  PothosSchema,
-  SchemaBuilderToken,
-} from '@smatch-corp/nestjs-pothos'
+import { Pothos, PothosRef, PothosSchema, SchemaBuilderToken } from '@smatch-corp/nestjs-pothos'
 import { Builder } from '../Graphql/graphql.builder'
 import { PrismaService } from '../Prisma/prisma.service'
 import { MailService } from '../Mail/mail.service'
 import { JwtUtils } from '../common/utils/jwt.utils'
+import { clerkClient } from '@clerk/express'
+import { RedisService } from 'src/Redis/redis.service'
 @Injectable()
 export class CenterMentorSchema extends PothosSchema {
   constructor(
@@ -16,6 +13,7 @@ export class CenterMentorSchema extends PothosSchema {
     private readonly prisma: PrismaService,
     private readonly mailService: MailService,
     private readonly jwtUtils: JwtUtils,
+    private readonly redisService: RedisService,
   ) {
     super()
   }
@@ -57,8 +55,7 @@ export class CenterMentorSchema extends PothosSchema {
   init(): void {
     this.builder.queryFields((t) => ({
       centerMentors: t.prismaField({
-        description:
-          'Retrieve a list of center mentors with optional filtering, ordering, and pagination.',
+        description: 'Retrieve a list of center mentors with optional filtering, ordering, and pagination.',
         type: [this.centerMentor()],
         args: this.builder.generator.findManyArgs('CenterMentor'),
         resolve: async (query, _root, args) => {
@@ -154,10 +151,7 @@ export class CenterMentorSchema extends PothosSchema {
               throw new Error('Center not found')
             }
             // build signature
-            const token = this.jwtUtils.signTokenRS256(
-              { centerId: center.id, email: args.email },
-              '1d',
-            )
+            const token = this.jwtUtils.signTokenRS256({ centerId: center.id, email: args.email }, '1d')
             // build invite url
             const inviteUrl = `${process.env.CENTER_BASE_URL}/invite?token=${token}`
             // mail to user with params centerId, email
@@ -184,22 +178,14 @@ export class CenterMentorSchema extends PothosSchema {
         resolve: async (_query, _root, args) => {
           return this.prisma.$transaction(async () => {
             // sign token
-            const token = this.jwtUtils.signTokenRS256(
-              { centerId: args.centerId, email: args.email },
-              '1d',
-            )
+            const token = this.jwtUtils.signTokenRS256({ centerId: args.centerId, email: args.email }, '1d')
             // build invite url
             const inviteUrl = `${process.env.CENTER_BASE_URL}/invite?token=${token}`
             // mail to user with params centerId, email
-            await this.mailService.sendTemplateEmail(
-              [args.email],
-              'Invite to center',
-              'MentorInvitation',
-              {
-                center_name: args.centerId,
-                invite_url: inviteUrl,
-              },
-            )
+            await this.mailService.sendTemplateEmail([args.email], 'Invite to center', 'MentorInvitation', {
+              center_name: args.centerId,
+              invite_url: inviteUrl,
+            })
             return null
           })
         },
@@ -277,6 +263,14 @@ export class CenterMentorSchema extends PothosSchema {
                   updatedAt: new Date(),
                 },
               })
+              // get active clerk session and invalidate cache
+              const sessionList = await clerkClient.sessions.getSessionList({
+                userId: mentor.id,
+              })
+              // clear all session cache in redis
+              sessionList.data.forEach(async (session) => {
+                await this.redisService.del(session.id)
+              })
               // update centerMentor
               const updatedCenterMentor = await prisma.centerMentor.update({
                 where: {