diff --git a/src/services/auth.service.ts b/src/services/auth.service.ts
index 1dd7c72..1de3830 100644
--- a/src/services/auth.service.ts
+++ b/src/services/auth.service.ts
@@ -6,6 +6,7 @@ import { RegisterInput, LoginInput } from '../schemas/auth.schema.js'
 import { sendConfirmationMail } from './mail.service.js'
 import { createActionToken } from './actionToken.service.js'
 import { Errors } from '../errors/AppError.js'
+import { generateGravatarUrl } from './avatar.service.js'
 
 export async function registerUser(
   prisma: PrismaClient,
@@ -25,12 +26,13 @@ export async function registerUser(
       email: input.email,
       passwordHash,
       displayName,
-      avatar: '',
+      avatar: generateGravatarUrl(input.email),
     },
     select: {
       id: true,
       email: true,
       displayName: true,
+      avatar:true,
       isConfirmed: true,
       createdAt: true,
     },
@@ -63,6 +65,7 @@ export async function loginUser(prisma: PrismaClient, input: LoginInput) {
       id: user.id,
       email: user.email,
       displayName: user.displayName,
+      avatar: user.avatar,
       isConfirmed: user.isConfirmed,
       createdAt: user.createdAt,
       tokenVersion: user.tokenVersion,
diff --git a/src/services/avatar.service.ts b/src/services/avatar.service.ts
new file mode 100644
index 0000000..36babb4
--- /dev/null
+++ b/src/services/avatar.service.ts
@@ -0,0 +1,10 @@
+import crypto from 'crypto'
+
+export function generateGravatarUrl(email: string, size = 200): string {
+  const hash = crypto
+    .createHash('md5')
+    .update(email.trim().toLowerCase())
+    .digest('hex')
+
+  return `https://www.gravatar.com/avatar/${hash}?s=${size}&d=identicon`
+}
\ No newline at end of file