diff --git a/config/mainnet.go b/config/mainnet.go
index 30d6a71e09..f970c851cc 100644
--- a/config/mainnet.go
+++ b/config/mainnet.go
@@ -79,7 +79,7 @@ func MainnetConfig() Config {
 			MetricsPort:           1010,
 			DatabaseConnections:   16,
 			DatabasePruneInterval: 30 * time.Minute,
-			DatabaseVacuumState:   15,
+			DatabaseVacuumState:   21,
 			PruneActivesetsFrom:   12, // starting from epoch 13 activesets below 12 will be pruned
 			NetworkHRP:            "sm",