diff --git a/src/document/document.ts b/src/document/document.ts
index d4bdb96f1..48dbaf810 100644
--- a/src/document/document.ts
+++ b/src/document/document.ts
@@ -370,6 +370,11 @@ export interface PresenceChangedEvent<P extends Indexable>
 }
 
 type DocumentEventCallbackMap<P extends Indexable> = {
+  default: NextFn<
+    | SnapshotEvent
+    | LocalChangeEvent<OperationInfo, P>
+    | RemoteChangeEvent<OperationInfo, P>
+  >;
   presence: NextFn<
     | InitializedEvent<P>
     | WatchedEvent<P>
@@ -727,11 +732,7 @@ export class Document<T, P extends Indexable = Indexable> {
    * The callback will be called when the document is changed.
    */
   public subscribe(
-    next: NextFn<
-      | SnapshotEvent
-      | LocalChangeEvent<OperationInfo, P>
-      | RemoteChangeEvent<OperationInfo, P>
-    >,
+    next: DocumentEventCallbackMap<P>['default'],
     error?: ErrorFn,
     complete?: CompleteFn,
   ): Unsubscribe;
@@ -742,12 +743,7 @@ export class Document<T, P extends Indexable = Indexable> {
    */
   public subscribe(
     type: 'presence',
-    next: NextFn<
-      | InitializedEvent<P>
-      | WatchedEvent<P>
-      | UnwatchedEvent<P>
-      | PresenceChangedEvent<P>
-    >,
+    next: DocumentEventCallbackMap<P>['presence'],
     error?: ErrorFn,
     complete?: CompleteFn,
   ): Unsubscribe;
@@ -757,7 +753,7 @@ export class Document<T, P extends Indexable = Indexable> {
    */
   public subscribe(
     type: 'my-presence',
-    next: NextFn<InitializedEvent<P> | PresenceChangedEvent<P>>,
+    next: DocumentEventCallbackMap<P>['my-presence'],
     error?: ErrorFn,
     complete?: CompleteFn,
   ): Unsubscribe;
@@ -768,7 +764,7 @@ export class Document<T, P extends Indexable = Indexable> {
    */
   public subscribe(
     type: 'others',
-    next: NextFn<WatchedEvent<P> | UnwatchedEvent<P> | PresenceChangedEvent<P>>,
+    next: DocumentEventCallbackMap<P>['others'],
     error?: ErrorFn,
     complete?: CompleteFn,
   ): Unsubscribe;
@@ -778,7 +774,7 @@ export class Document<T, P extends Indexable = Indexable> {
    */
   public subscribe(
     type: 'connection',
-    next: NextFn<ConnectionChangedEvent>,
+    next: DocumentEventCallbackMap<P>['connection'],
     error?: ErrorFn,
     complete?: CompleteFn,
   ): Unsubscribe;
@@ -788,7 +784,7 @@ export class Document<T, P extends Indexable = Indexable> {
    */
   public subscribe(
     type: 'sync',
-    next: NextFn<SyncStatusChangedEvent>,
+    next: DocumentEventCallbackMap<P>['sync'],
     error?: ErrorFn,
     complete?: CompleteFn,
   ): Unsubscribe;
@@ -812,7 +808,7 @@ export class Document<T, P extends Indexable = Indexable> {
    */
   public subscribe(
     type: 'all',
-    next: NextFn<TransactionEvent<P>>,
+    next: DocumentEventCallbackMap<P>['all'],
     error?: ErrorFn,
     complete?: CompleteFn,
   ): Unsubscribe;
diff --git a/test/integration/client_test.ts b/test/integration/client_test.ts
index 6ebd0dd7a..d87bf4008 100644
--- a/test/integration/client_test.ts
+++ b/test/integration/client_test.ts
@@ -140,7 +140,7 @@ describe.sequential('Client', function () {
 
     const unsub1 = {
       syncEvent: d1.subscribe('sync', (event) => {
-        eventCollectorSync1.add(event.value as DocumentSyncStatus);
+        eventCollectorSync1.add(event.value);
       }),
       doc: d1.subscribe((event) => {
         eventCollectorD1.add(event.type);
@@ -148,7 +148,7 @@ describe.sequential('Client', function () {
     };
     const unsub2 = {
       syncEvent: d2.subscribe('sync', (event) => {
-        eventCollectorSync2.add(event.value as DocumentSyncStatus);
+        eventCollectorSync2.add(event.value);
       }),
       doc: d2.subscribe((event) => {
         eventCollectorD2.add(event.type);
@@ -236,7 +236,7 @@ describe.sequential('Client', function () {
     // 02. c2 changes the sync mode to realtime sync mode.
     const eventCollector = new EventCollector();
     const unsub1 = d2.subscribe('sync', (event) => {
-      eventCollector.add(event.value as DocumentSyncStatus);
+      eventCollector.add(event.value);
     });
     await c2.changeSyncMode(d2, SyncMode.Realtime);
     await eventCollector.waitFor(DocumentSyncStatus.Synced); // sync occurs when resuming
@@ -414,7 +414,7 @@ describe.sequential('Client', function () {
 
     const eventCollector = new EventCollector();
     const unsub1 = d2.subscribe('sync', (event) => {
-      eventCollector.add(event.value as DocumentSyncStatus);
+      eventCollector.add(event.value);
     });
 
     // 01. c2 attach the doc with realtime sync mode at first.
@@ -491,7 +491,7 @@ describe.sequential('Client', function () {
     //     and sync with push-only mode: CP(2, 2) -> CP(3, 2)
     const eventCollector = new EventCollector();
     const unsub = d1.subscribe('sync', (event) => {
-      eventCollector.add(event.value as DocumentSyncStatus);
+      eventCollector.add(event.value);
     });
     d1.update((root) => {
       root.counter.increase(1);