diff --git a/changelog.md b/changelog.md
index 445560fdb4..b2d6b20d4c 100644
--- a/changelog.md
+++ b/changelog.md
@@ -37,6 +37,7 @@ The `zetacored` binary must be upgraded to trigger chain parameters data migrati
 * [4509](https://github.com/zeta-chain/node/pull/4509) - use outbound schedule interval in sui cctx scheduling
 * [4514](https://github.com/zeta-chain/node/pull/4514) - use Zeta height as a factor to calculate the EVM chain artificial height for TSS keysign
 * [4513](https://github.com/zeta-chain/node/pull/4513) - use `outbound_schedule_interval` and `outbound_schedule_lookahead` in ton cctx scheduling
+* [4641](https://github.com/zeta-chain/node/pull/4641) - fix busy-loop goroutine leak in `newPendingTransactions` websocket subscriptions after unsubscribe/disconnect
 
 ### Tests
 
diff --git a/rpc/websockets.go b/rpc/websockets.go
index 39f111bbda..fd330dc647 100644
--- a/rpc/websockets.go
+++ b/rpc/websockets.go
@@ -734,7 +734,11 @@ func (api *pubSubAPI) subscribePendingTransactions(wsConn *wsConn, subID rpc.ID)
 		errCh := sub.Err()
 		for {
 			select {
-			case ev := <-txsCh:
+			case ev, ok := <-txsCh:
+				if !ok {
+					return
+				}
+
 				data, ok := ev.Data.(cmttypes.EventDataTx)
 				if !ok {
 					api.logger.Debug("event data type mismatch", "type", fmt.Sprintf("%T", ev.Data))