diff --git a/server/src/routes/oauth-social.js b/server/src/routes/oauth-social.js
index 82dfb57..c0f72b1 100644
--- a/server/src/routes/oauth-social.js
+++ b/server/src/routes/oauth-social.js
@@ -242,9 +242,18 @@ export async function registerOAuthSocialRoutes(fastify) {
       suggestedEmail: emailGuess || null,
     })
 
-    const dn = `${info.first_name ?? ''} ${info.last_name ?? ''}`.trim()
-    if (dn && !user.name) {
-      await prisma.user.update({ where: { id: user.id }, data: { name: dn } })
+    const updateData = {}
+    const displayName =
+      [info.first_name, info.last_name].filter(Boolean).join(' ').trim() || info.display_name || info.real_name
+    if (displayName && !user.displayName) updateData.displayName = displayName
+    if (info.first_name) updateData.firstName = info.first_name
+    if (info.last_name) updateData.lastName = info.last_name
+    if (info.sex === 'male' || info.sex === 'female') updateData.gender = info.sex
+    if (info.default_avatar_id && !info.is_avatar_empty) {
+      updateData.avatar = `https://avatars.yandex.net/get-yapic/${info.default_avatar_id}/islands-200`
+    }
+    if (Object.keys(updateData).length > 0) {
+      await prisma.user.update({ where: { id: user.id }, data: updateData })
     }
 
     const token = await issueUserJwt(fastify, user.id, user.email)