diff --git a/mirai-core-api/src/commonMain/kotlin/contact/Contact.kt b/mirai-core-api/src/commonMain/kotlin/contact/Contact.kt
index 7e0e87e55..e3424cc1d 100644
--- a/mirai-core-api/src/commonMain/kotlin/contact/Contact.kt
+++ b/mirai-core-api/src/commonMain/kotlin/contact/Contact.kt
@@ -36,7 +36,6 @@ public interface Contact : ContactOrBot, CoroutineScope {
     /**
      * 这个联系对象所属 [Bot].
      */
-    @WeakRefProperty
     public override val bot: Bot
 
     /**
diff --git a/mirai-core-api/src/commonMain/kotlin/contact/Member.kt b/mirai-core-api/src/commonMain/kotlin/contact/Member.kt
index ba957cdf1..0f7e67caf 100644
--- a/mirai-core-api/src/commonMain/kotlin/contact/Member.kt
+++ b/mirai-core-api/src/commonMain/kotlin/contact/Member.kt
@@ -21,7 +21,6 @@ import net.mamoe.mirai.message.action.Nudge
 import net.mamoe.mirai.message.data.Message
 import net.mamoe.mirai.message.data.isContentEmpty
 import net.mamoe.mirai.utils.NotStableForInheritance
-import net.mamoe.mirai.utils.WeakRefProperty
 
 /**
  * 代表一位群成员.
@@ -41,7 +40,6 @@ public interface Member : User {
     /**
      * 所在的群.
      */
-    @WeakRefProperty
     public val group: Group
 
     /**
diff --git a/mirai-core/src/commonMain/kotlin/contact/AbstractContact.kt b/mirai-core/src/commonMain/kotlin/contact/AbstractContact.kt
index 2b4e88e3d..76eef94d6 100644
--- a/mirai-core/src/commonMain/kotlin/contact/AbstractContact.kt
+++ b/mirai-core/src/commonMain/kotlin/contact/AbstractContact.kt
@@ -11,18 +11,13 @@ package net.mamoe.mirai.internal.contact
 
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.SupervisorJob
-import net.mamoe.mirai.Bot
 import net.mamoe.mirai.contact.Contact
 import net.mamoe.mirai.internal.QQAndroidBot
-import net.mamoe.mirai.utils.cast
-import net.mamoe.mirai.utils.getValue
-import net.mamoe.mirai.utils.unsafeWeakRef
 import kotlin.coroutines.CoroutineContext
 
 internal abstract class AbstractContact(
-    bot: Bot,
+    final override val bot: QQAndroidBot,
     coroutineContext: CoroutineContext,
 ) : Contact {
     final override val coroutineContext: CoroutineContext = coroutineContext + SupervisorJob(coroutineContext[Job])
-    final override val bot: QQAndroidBot by bot.cast<QQAndroidBot>().unsafeWeakRef()
 }
\ No newline at end of file
diff --git a/mirai-core/src/commonMain/kotlin/contact/AbstractMember.kt b/mirai-core/src/commonMain/kotlin/contact/AbstractMember.kt
index d237454ec..17bf99da2 100644
--- a/mirai-core/src/commonMain/kotlin/contact/AbstractMember.kt
+++ b/mirai-core/src/commonMain/kotlin/contact/AbstractMember.kt
@@ -14,17 +14,13 @@ import net.mamoe.mirai.contact.MemberPermission
 import net.mamoe.mirai.data.MemberInfo
 import net.mamoe.mirai.internal.contact.info.MemberInfoImpl
 import net.mamoe.mirai.utils.cast
-import net.mamoe.mirai.utils.getValue
-import net.mamoe.mirai.utils.unsafeWeakRef
 import kotlin.coroutines.CoroutineContext
 
 internal abstract class AbstractMember(
-    group: GroupImpl,
+    final override val group: GroupImpl,
     coroutineContext: CoroutineContext,
     memberInfo: MemberInfo,
 ) : AbstractUser(group.bot, coroutineContext, memberInfo), Member {
-    final override val group: GroupImpl by group.unsafeWeakRef()
-
     final override val info: MemberInfoImpl = memberInfo.cast()
 
     override val nameCard: String get() = info.nameCard
diff --git a/mirai-core/src/commonMain/kotlin/contact/AbstractUser.kt b/mirai-core/src/commonMain/kotlin/contact/AbstractUser.kt
index 0514fc86d..962494537 100644
--- a/mirai-core/src/commonMain/kotlin/contact/AbstractUser.kt
+++ b/mirai-core/src/commonMain/kotlin/contact/AbstractUser.kt
@@ -9,12 +9,12 @@
 
 package net.mamoe.mirai.internal.contact
 
-import net.mamoe.mirai.Bot
 import net.mamoe.mirai.Mirai
 import net.mamoe.mirai.contact.User
 import net.mamoe.mirai.data.UserInfo
 import net.mamoe.mirai.event.broadcast
 import net.mamoe.mirai.event.events.*
+import net.mamoe.mirai.internal.QQAndroidBot
 import net.mamoe.mirai.internal.message.OfflineFriendImage
 import net.mamoe.mirai.internal.message.contextualBugReportException
 import net.mamoe.mirai.internal.message.getImageType
@@ -40,7 +40,7 @@ import kotlin.coroutines.CoroutineContext
 internal val User.info: UserInfo? get() = this.castOrNull<AbstractUser>()?.info
 
 internal abstract class AbstractUser(
-    bot: Bot,
+    bot: QQAndroidBot,
     coroutineContext: CoroutineContext,
     userInfo: UserInfo,
 ) : User, AbstractContact(bot, coroutineContext) {
diff --git a/mirai-core/src/commonMain/kotlin/contact/OtherClientImpl.kt b/mirai-core/src/commonMain/kotlin/contact/OtherClientImpl.kt
index b6056125f..6a2cc8153 100644
--- a/mirai-core/src/commonMain/kotlin/contact/OtherClientImpl.kt
+++ b/mirai-core/src/commonMain/kotlin/contact/OtherClientImpl.kt
@@ -9,7 +9,6 @@
 
 package net.mamoe.mirai.internal.contact
 
-import net.mamoe.mirai.Bot
 import net.mamoe.mirai.contact.OtherClient
 import net.mamoe.mirai.contact.OtherClientInfo
 import net.mamoe.mirai.internal.QQAndroidBot
@@ -29,7 +28,7 @@ internal fun QQAndroidBot.createOtherClient(
 }
 
 internal class OtherClientImpl(
-    bot: Bot,
+    bot: QQAndroidBot,
     coroutineContext: CoroutineContext,
     override val info: OtherClientInfo,
 ) : OtherClient, AbstractContact(bot, coroutineContext) {