diff --git a/SignalServiceKit/Account/TSAccountManager/RegistrationStateChangeManager/RegistrationStateChangeManagerImpl.swift b/SignalServiceKit/Account/TSAccountManager/RegistrationStateChangeManager/RegistrationStateChangeManagerImpl.swift
index 3ca7579aae..5bde2cbbd9 100644
--- a/SignalServiceKit/Account/TSAccountManager/RegistrationStateChangeManager/RegistrationStateChangeManagerImpl.swift
+++ b/SignalServiceKit/Account/TSAccountManager/RegistrationStateChangeManager/RegistrationStateChangeManagerImpl.swift
@@ -16,11 +16,7 @@ public class RegistrationStateChangeManagerImpl: RegistrationStateChangeManager
     private let backupSubscriptionManager: BackupSubscriptionManager
     private let backupTestFlightEntitlementManager: BackupTestFlightEntitlementManager
     private let blockedRecipientStore: BlockedRecipientStore
-    private var chatConnectionManager: any ChatConnectionManager {
-        // TODO: Fix circular dependency.
-        return DependenciesBridge.shared.chatConnectionManager
-    }
-
+    private let chatConnectionManager: any ChatConnectionManager
     private let cron: Cron
     private let db: DB
     private let dmConfigurationStore: DisappearingMessagesConfigurationStore
@@ -45,6 +41,7 @@ public class RegistrationStateChangeManagerImpl: RegistrationStateChangeManager
         backupSubscriptionManager: BackupSubscriptionManager,
         backupTestFlightEntitlementManager: BackupTestFlightEntitlementManager,
         blockedRecipientStore: BlockedRecipientStore,
+        chatConnectionManager: any ChatConnectionManager,
         cron: Cron,
         db: DB,
         dmConfigurationStore: DisappearingMessagesConfigurationStore,
@@ -68,6 +65,7 @@ public class RegistrationStateChangeManagerImpl: RegistrationStateChangeManager
         self.backupSubscriptionManager = backupSubscriptionManager
         self.backupTestFlightEntitlementManager = backupTestFlightEntitlementManager
         self.blockedRecipientStore = blockedRecipientStore
+        self.chatConnectionManager = chatConnectionManager
         self.cron = cron
         self.db = db
         self.dmConfigurationStore = dmConfigurationStore
diff --git a/SignalServiceKit/Environment/AppSetup.swift b/SignalServiceKit/Environment/AppSetup.swift
index 25eb9abd26..0f59755dcb 100644
--- a/SignalServiceKit/Environment/AppSetup.swift
+++ b/SignalServiceKit/Environment/AppSetup.swift
@@ -1011,6 +1011,16 @@ extension AppSetup.GlobalsContinuation {
         let inactivePrimaryDeviceStore = InactivePrimaryDeviceStore()
         let keyTransparencyStore = KeyTransparencyStore()
 
+        let chatConnectionManager = ChatConnectionManagerImpl(
+            accountManager: tsAccountManager,
+            appContext: appContext,
+            appExpiry: appExpiry,
+            appReadiness: appReadiness,
+            db: db,
+            inactivePrimaryDeviceStore: inactivePrimaryDeviceStore,
+            libsignalNet: libsignalNet,
+        )
+
         let registrationStateChangeManager = RegistrationStateChangeManagerImpl(
             authCredentialStore: authCredentialStore,
             backupAttachmentUploadEraStore: backupAttachmentUploadEraStore,
@@ -1018,6 +1028,7 @@ extension AppSetup.GlobalsContinuation {
             backupSubscriptionManager: backupSubscriptionManager,
             backupTestFlightEntitlementManager: backupTestFlightEntitlementManager,
             blockedRecipientStore: blockedRecipientStore,
+            chatConnectionManager: chatConnectionManager,
             cron: cron,
             db: db,
             dmConfigurationStore: disappearingMessagesConfigurationStore,
@@ -1035,17 +1046,9 @@ extension AppSetup.GlobalsContinuation {
             udManager: udManager,
             versionedProfiles: versionedProfiles,
         )
-
-        let chatConnectionManager = ChatConnectionManagerImpl(
-            accountManager: tsAccountManager,
-            appContext: appContext,
-            appExpiry: appExpiry,
-            appReadiness: appReadiness,
-            db: db,
-            inactivePrimaryDeviceStore: inactivePrimaryDeviceStore,
-            libsignalNet: libsignalNet,
-            registrationStateChangeManager: registrationStateChangeManager,
-        )
+        chatConnectionManager.onRegistrationStateChange = { [weak registrationStateChangeManager] isDelinkedOrDeregistered, tx in
+            registrationStateChangeManager?.setIsDeregisteredOrDelinked(isDelinkedOrDeregistered, tx: tx)
+        }
 
         let attachmentUploadManager = AttachmentUploadManagerImpl(
             accountKeyStore: accountKeyStore,
diff --git a/SignalServiceKit/Network/ChatConnectionManager.swift b/SignalServiceKit/Network/ChatConnectionManager.swift
index 7f08b9f019..a1b165bdfb 100644
--- a/SignalServiceKit/Network/ChatConnectionManager.swift
+++ b/SignalServiceKit/Network/ChatConnectionManager.swift
@@ -96,6 +96,19 @@ public class ChatConnectionManagerImpl: ChatConnectionManager {
     private let connectionUnidentified: OWSUnauthConnectionUsingLibSignal
     private var connections: [OWSChatConnection] { [connectionIdentified, connectionUnidentified] }
 
+    // TODO: This is a workaround to solve the circular dependency between
+    // ChatConnectionManager and RegistrationStateChangeManager. In the event that
+    // someday RegistrationStateChangeManager is split up into smaller pieces, this
+    // can be revisited.
+    public var onRegistrationStateChange: ((_ isDelinkedOrDeregisterd: Bool, _ tx: DBWriteTransaction) -> Void)? {
+        get {
+            connectionIdentified.onRegistrationStateChange
+        }
+        set {
+            connectionIdentified.onRegistrationStateChange = newValue
+        }
+    }
+
     @MainActor
     public init(
         accountManager: TSAccountManager,
@@ -105,7 +118,6 @@ public class ChatConnectionManagerImpl: ChatConnectionManager {
         db: any DB,
         inactivePrimaryDeviceStore: InactivePrimaryDeviceStore,
         libsignalNet: Net,
-        registrationStateChangeManager: RegistrationStateChangeManager,
     ) {
         self.connectionIdentified = OWSAuthConnectionUsingLibSignal(
             libsignalNet: libsignalNet,
@@ -115,7 +127,6 @@ public class ChatConnectionManagerImpl: ChatConnectionManager {
             appReadiness: appReadiness,
             db: db,
             inactivePrimaryDeviceStore: inactivePrimaryDeviceStore,
-            registrationStateChangeManager: registrationStateChangeManager,
         )
         self.connectionUnidentified = OWSUnauthConnectionUsingLibSignal(
             libsignalNet: libsignalNet,
diff --git a/SignalServiceKit/Network/OWSChatConnection.swift b/SignalServiceKit/Network/OWSChatConnection.swift
index 068884f08d..30fdc228d8 100644
--- a/SignalServiceKit/Network/OWSChatConnection.swift
+++ b/SignalServiceKit/Network/OWSChatConnection.swift
@@ -885,9 +885,10 @@ class OWSAuthConnectionUsingLibSignal: OWSChatConnectionUsingLibSignal<Authentic
         }
     }
 
+    var onRegistrationStateChange: ((_ isDelinkedOrDeregisterd: Bool, _ tx: DBWriteTransaction) -> Void)?
+
     private let accountManager: TSAccountManager
     private let inactivePrimaryDeviceStore: InactivePrimaryDeviceStore
-    private let registrationStateChangeManager: RegistrationStateChangeManager
 
     init(
         libsignalNet: Net,
@@ -897,11 +898,9 @@ class OWSAuthConnectionUsingLibSignal: OWSChatConnectionUsingLibSignal<Authentic
         appReadiness: AppReadiness,
         db: any DB,
         inactivePrimaryDeviceStore: InactivePrimaryDeviceStore,
-        registrationStateChangeManager: RegistrationStateChangeManager,
     ) {
         self.accountManager = accountManager
         self.inactivePrimaryDeviceStore = inactivePrimaryDeviceStore
-        self.registrationStateChangeManager = registrationStateChangeManager
 
         let priority: Int
         switch appContext.type {
@@ -1028,7 +1027,7 @@ class OWSAuthConnectionUsingLibSignal: OWSChatConnectionUsingLibSignal<Authentic
                     if self.connection.isCurrentlyConnecting(token) {
                         self._setRegistrationOverride(false)
                         self.db.write { tx in
-                            self.registrationStateChangeManager.setIsDeregisteredOrDelinked(true, tx: tx)
+                            self.onRegistrationStateChange?(true, tx)
                         }
                     }
                 }
@@ -1063,7 +1062,7 @@ class OWSAuthConnectionUsingLibSignal: OWSChatConnectionUsingLibSignal<Authentic
                 service.start(listener: self)
                 if accountManager.registrationStateWithMaybeSneakyTransaction.isDeregistered {
                     db.write { tx in
-                        registrationStateChangeManager.setIsDeregisteredOrDelinked(false, tx: tx)
+                        self.onRegistrationStateChange?(false, tx)
                     }
                 }
                 keepaliveSenderTask = makeKeepaliveTask(service)