diff --git a/changelog.md b/changelog.md
index 66136741a3..434d69161e 100644
--- a/changelog.md
+++ b/changelog.md
@@ -28,6 +28,7 @@
 * [3253](https://github.com/zeta-chain/node/pull/3253) - fix solana inbound version 0 queries and move tss keysign prior to relayer key checking
 * [3278](https://github.com/zeta-chain/node/pull/3278) - enforce checksum format for asset address in ZRC20
 * [3289](https://github.com/zeta-chain/node/pull/3289) - remove all dynamic peer discovery (zetaclient)
+* [3314](https://github.com/zeta-chain/node/pull/3314) - update `last_scanned_block_number` metrics more frequently for Solana chain
 
 ## v23.0.0
 
diff --git a/zetaclient/chains/solana/observer/inbound.go b/zetaclient/chains/solana/observer/inbound.go
index 6eab1242ac..6cc1c8d84c 100644
--- a/zetaclient/chains/solana/observer/inbound.go
+++ b/zetaclient/chains/solana/observer/inbound.go
@@ -81,6 +81,12 @@ func (ob *Observer) ObserveInbound(ctx context.Context) error {
 		ob.WithLastTxScanned(lastSig.String())
 	}
 
+	// query last finalized slot
+	lastSlot, errSlot := ob.solClient.GetSlot(ctx, rpc.CommitmentFinalized)
+	if errSlot != nil {
+		ob.Logger().Inbound.Err(errSlot).Msg("unable to get last slot")
+	}
+
 	// get all signatures for the gateway address since last scanned signature
 	lastSig := solana.MustSignatureFromBase58(ob.LastTxScanned())
 	signatures, err := solanarpc.GetSignaturesForAddressUntil(ctx, ob.solClient, ob.gatewayID, lastSig, pageLimit)
@@ -88,7 +94,13 @@ func (ob *Observer) ObserveInbound(ctx context.Context) error {
 		ob.Logger().Inbound.Err(err).Msg("error GetSignaturesForAddressUntil")
 		return err
 	}
-	if len(signatures) > 0 {
+
+	// update metrics if no new signatures found
+	if len(signatures) == 0 {
+		if errSlot == nil {
+			ob.WithLastBlockScanned(lastSlot)
+		}
+	} else {
 		ob.Logger().Inbound.Info().Msgf("ObserveInbound: got %d signatures for chain %d", len(signatures), chainID)
 	}