diff --git a/mirai-core-mock/src/internal/contact/MockAnnouncementsImpl.kt b/mirai-core-mock/src/internal/contact/MockAnnouncementsImpl.kt
index a5e50b7f2..831eb5c3d 100644
--- a/mirai-core-mock/src/internal/contact/MockAnnouncementsImpl.kt
+++ b/mirai-core-mock/src/internal/contact/MockAnnouncementsImpl.kt
@@ -21,7 +21,6 @@ import net.mamoe.mirai.contact.isOperator
 import net.mamoe.mirai.mock.contact.announcement.MockAnnouncements
 import net.mamoe.mirai.mock.contact.announcement.MockOnlineAnnouncement
 import net.mamoe.mirai.mock.contact.announcement.copy
-import net.mamoe.mirai.mock.utils.broadcastBlocking
 import net.mamoe.mirai.mock.utils.mock
 import net.mamoe.mirai.utils.ExternalResource
 import net.mamoe.mirai.utils.currentTimeSeconds
@@ -71,14 +70,6 @@ internal class MockAnnouncementsImpl(
         putDirect(ann)
         if (!events) return ann
 
-        @Suppress("DEPRECATION", "DEPRECATION_ERROR")
-        net.mamoe.mirai.event.events.GroupEntranceAnnouncementChangeEvent(
-            origin = old?.content.orEmpty(),
-            new = ann.content,
-            group = group,
-            operator = actor.takeUnless { it.id == group.bot.id }
-        ).broadcastBlocking()
-
         // TODO: mirai-core no other events about announcements
         return ann
     }
diff --git a/mirai-core-mock/test/mock/MockGroupTest.kt b/mirai-core-mock/test/mock/MockGroupTest.kt
index feee4dd2f..485068a98 100644
--- a/mirai-core-mock/test/mock/MockGroupTest.kt
+++ b/mirai-core-mock/test/mock/MockGroupTest.kt
@@ -100,9 +100,7 @@ internal class MockGroupTest : MockBotTestBase() {
                 )
             )
         }.let { events ->
-            assertEquals(2, events.size)
-            @Suppress("RemoveRedundantQualifierName", "DEPRECATION")
-            assertIsInstance<net.mamoe.mirai.event.events.GroupEntranceAnnouncementChangeEvent>(events[0])
+            assertEquals(0, events.size)
         }
         val anc = group.announcements.asFlow().toList()
         assertEquals(1, anc.size)