diff --git a/zerver/management/commands/send_zulip_update_announcements.py b/zerver/management/commands/send_zulip_update_announcements.py
index 23829b88ab..a885f46f58 100644
--- a/zerver/management/commands/send_zulip_update_announcements.py
+++ b/zerver/management/commands/send_zulip_update_announcements.py
@@ -1,8 +1,11 @@
 from argparse import ArgumentParser
 from typing import Any
 
+from django.conf import settings
 from typing_extensions import override
 
+from scripts.lib.zulip_tools import ENDC, WARNING
+from zerver.lib.context_managers import lockfile_nonblocking
 from zerver.lib.management import ZulipBaseCommand
 from zerver.lib.zulip_update_announcements import send_zulip_update_announcements
 
@@ -20,4 +23,13 @@ class Command(ZulipBaseCommand):
 
     @override
     def handle(self, *args: Any, **options: Any) -> None:
-        send_zulip_update_announcements(skip_delay=options["skip_delay"])
+        with lockfile_nonblocking(
+            settings.ZULIP_UPDATE_ANNOUNCEMENTS_LOCK_FILE,
+        ) as lock_acquired:
+            if lock_acquired:
+                send_zulip_update_announcements(skip_delay=options["skip_delay"])
+            else:
+                print(
+                    f"{WARNING}Update announcements lock {settings.ZULIP_UPDATE_ANNOUNCEMENTS_LOCK_FILE} is unavailable;"
+                    f" exiting.{ENDC}"
+                )
diff --git a/zproject/computed_settings.py b/zproject/computed_settings.py
index 4aba17d188..c632f7f54d 100644
--- a/zproject/computed_settings.py
+++ b/zproject/computed_settings.py
@@ -699,6 +699,9 @@ AUTH_LOG_PATH = zulip_path("/var/log/zulip/auth.log")
 SCIM_LOG_PATH = zulip_path("/var/log/zulip/scim.log")
 
 ZULIP_WORKER_TEST_FILE = zulip_path("/var/log/zulip/zulip-worker-test-file")
+ZULIP_UPDATE_ANNOUNCEMENTS_LOCK_FILE = zulip_path(
+    "/home/zulip/deployments/zulip_update_announcements.lock"
+)
 
 
 if IS_WORKER: