diff --git a/mithril-aggregator/src/configuration.rs b/mithril-aggregator/src/configuration.rs
index d208c7dcd4a..74f3a1df48d 100644
--- a/mithril-aggregator/src/configuration.rs
+++ b/mithril-aggregator/src/configuration.rs
@@ -395,8 +395,8 @@ impl Default for DefaultConfiguration {
             cardano_transactions_prover_cache_pool_size: 10,
             cardano_transactions_database_connection_pool_size: 10,
             cardano_transactions_signing_config: CardanoTransactionsSigningConfig {
-                security_parameter: 3000,
-                step: 120,
+                security_parameter: 100,
+                step: 30,
             },
             cardano_transactions_prover_max_hashes_allowed_by_request: 100,
             cardano_transactions_block_streamer_max_roll_forwards_per_poll: 1000,