diff --git a/src/sentry/api/endpoints/relay/register_response.py b/src/sentry/api/endpoints/relay/register_response.py
index 401dbb1d6e97..cdb723ac108a 100644
--- a/src/sentry/api/endpoints/relay/register_response.py
+++ b/src/sentry/api/endpoints/relay/register_response.py
@@ -15,6 +15,7 @@
 from sentry.api.serializers import serialize
 from sentry.models.relay import Relay, RelayUsage
 from sentry.relay.utils import get_header_relay_id, get_header_relay_signature
+from sentry.tasks.process_buffer import buffer_incr
 
 from . import RelayIdSerializer
 
@@ -101,9 +102,12 @@ def post(self, request: Request) -> Response:
             except RelayUsage.DoesNotExist:
                 RelayUsage.objects.create(relay_id=relay_id, version=version, public_key=public_key)
             else:
-                relay_usage.last_seen = timezone.now()
-                relay_usage.public_key = public_key
-                relay_usage.save()
+                buffer_incr(
+                    model=RelayUsage,
+                    columns={},
+                    filters={"id": relay_usage.id},
+                    extra={"last_seen": timezone.now(), "public_key": public_key},
+                )
 
         assert relay is not None
         return Response(serialize({"relay_id": relay.relay_id}))
diff --git a/tests/sentry/api/endpoints/test_relay_register.py b/tests/sentry/api/endpoints/test_relay_register.py
index 6b5834d6a88c..e49ad0f97387 100644
--- a/tests/sentry/api/endpoints/test_relay_register.py
+++ b/tests/sentry/api/endpoints/test_relay_register.py
@@ -533,7 +533,8 @@ def test_relay_usage_is_updated_at_registration(self) -> None:
         self.register_relay(key_pair, "2.2.2", relay_id)
         after_second_relay = timezone.now()
         # re register the first one in order to update the last used time
-        self.register_relay(key_pair, "1.1.1", relay_id)
+        with self.tasks():
+            self.register_relay(key_pair, "1.1.1", relay_id)
         after_re_register = timezone.now()
 
         rv1 = RelayUsage.objects.get(relay_id=relay_id, version="1.1.1")