diff --git a/users/jobs/sync.py b/users/jobs/sync.py
index 0a159b13..acc9d827 100644
--- a/users/jobs/sync.py
+++ b/users/jobs/sync.py
@@ -9,12 +9,13 @@ from users.models import User
 
 @JobManager.register
 class MastodonUserSync(BaseJob):
-    batch = 8
+    batch = 16
     interval_hours = 3
     interval = timedelta(hours=interval_hours)
 
     def run(self):
         logger.info("Mastodon User Sync start.")
+        inactive_threshold = timezone.now() - timedelta(days=60)
         qs = (
             User.objects.exclude(
                 preference__mastodon_skip_userinfo=True,
@@ -32,5 +33,10 @@ class MastodonUserSync(BaseJob):
             .exclude(mastodon_token="")
         )
         for user in qs.iterator():
+            if user.last_login < inactive_threshold:
+                last_usage = user.last_usage
+                if not last_usage or last_usage < inactive_threshold:
+                    logger.warning(f"Skip {user} because of inactivity.")
+                    continue
             user.refresh_mastodon_data()
         logger.info(f"Mastodon User Sync finished.")
diff --git a/users/models/user.py b/users/models/user.py
index 6f399eeb..5fb637b1 100644
--- a/users/models/user.py
+++ b/users/models/user.py
@@ -214,6 +214,13 @@ class User(AbstractUser):
     def registration_complete(self):
         return self.username is not None
 
+    @property
+    def last_usage(self):
+        from journal.models import Piece
+
+        p = Piece.objects.filter(owner=self.identity).order_by("-edited_time").first()
+        return p.edited_time if p else None
+
     def clear(self):
         if self.mastodon_site == "removed" and not self.is_active:
             return
@@ -344,6 +351,8 @@ class User(AbstractUser):
                     "mastodon_mutes",
                     "mastodon_blocks",
                     "mastodon_domain_blocks",
+                    "mastodon_last_refresh",
+                    "mastodon_last_reachable",
                 ]
             )
             if not self.preference.mastodon_skip_userinfo: