diff --git a/bridges/primitives/chain-rococo/src/lib.rs b/bridges/primitives/chain-rococo/src/lib.rs
index 9a7ac9da67da0..a47f0277ef545 100644
--- a/bridges/primitives/chain-rococo/src/lib.rs
+++ b/bridges/primitives/chain-rococo/src/lib.rs
@@ -32,12 +32,12 @@ pub use bp_polkadot_core::*;
 /// Rococo Chain
 pub type Rococo = PolkadotLike;
 
-/// The target length of a session (how often authorities change) on Westend measured in of number
+/// The target length of a session (how often authorities change) on Rococo measured in of number
 /// of blocks.
 ///
 /// Note that since this is a target sessions may change before/after this time depending on network
 /// conditions.
-pub const SESSION_LENGTH: BlockNumber = 10 * time_units::MINUTES;
+pub const SESSION_LENGTH: BlockNumber = 1 * time_units::HOURS;
 
 // NOTE: This needs to be kept up to date with the Rococo runtime found in the Polkadot repo.
 pub const VERSION: RuntimeVersion = RuntimeVersion {
diff --git a/bridges/primitives/chain-wococo/src/lib.rs b/bridges/primitives/chain-wococo/src/lib.rs
index 4f715c3994aae..a05a2ad46a933 100644
--- a/bridges/primitives/chain-wococo/src/lib.rs
+++ b/bridges/primitives/chain-wococo/src/lib.rs
@@ -25,13 +25,18 @@ use sp_std::prelude::*;
 
 pub use bp_polkadot_core::*;
 // Rococo runtime = Wococo runtime
-pub use bp_rococo::{
-	WeightToFee, EXISTENTIAL_DEPOSIT, PAY_INBOUND_DISPATCH_FEE_WEIGHT, SESSION_LENGTH, VERSION,
-};
+pub use bp_rococo::{WeightToFee, EXISTENTIAL_DEPOSIT, PAY_INBOUND_DISPATCH_FEE_WEIGHT, VERSION};
 
 /// Wococo Chain
 pub type Wococo = PolkadotLike;
 
+/// The target length of a session (how often authorities change) on Wococo measured in of number
+/// of blocks.
+///
+/// Note that since this is a target sessions may change before/after this time depending on network
+/// conditions.
+pub const SESSION_LENGTH: BlockNumber = 1 * time_units::MINUTES;
+
 // We use this to get the account on Wococo (target) which is derived from Rococo's (source)
 // account.
 pub fn derive_account_from_rococo_id(id: bp_runtime::SourceAccount<AccountId>) -> AccountId {
diff --git a/bridges/relays/bin-substrate/Cargo.toml b/bridges/relays/bin-substrate/Cargo.toml
index 86c1cedf375dd..0bfff98d18655 100644
--- a/bridges/relays/bin-substrate/Cargo.toml
+++ b/bridges/relays/bin-substrate/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "substrate-relay"
-version = "1.0.0"
+version = "1.0.1"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
diff --git a/bridges/relays/lib-substrate-relay/src/on_demand_headers.rs b/bridges/relays/lib-substrate-relay/src/on_demand_headers.rs
index d66aaba549e28..2e8a6db7983c6 100644
--- a/bridges/relays/lib-substrate-relay/src/on_demand_headers.rs
+++ b/bridges/relays/lib-substrate-relay/src/on_demand_headers.rs
@@ -192,8 +192,25 @@ async fn background_task<P: SubstrateFinalitySyncPipeline>(
 					// there are no (or we don't need to relay them) mandatory headers in the range
 					// => to avoid scanning the same headers over and over again, remember that
 					latest_non_mandatory_at_source = mandatory_scan_range.1;
+
+					log::trace!(
+						target: "bridge",
+						"No mandatory {} headers in the range {:?} of {} relay",
+						P::SourceChain::NAME,
+						mandatory_scan_range,
+						relay_task_name,
+					);
 				},
-				Err(e) =>
+				Err(e) => {
+					log::warn!(
+						target: "bridge",
+						"Failed to scan mandatory {} headers range in {} relay (range: {:?}): {:?}",
+						P::SourceChain::NAME,
+						relay_task_name,
+						mandatory_scan_range,
+						e,
+					);
+
 					if e.is_connection_error() {
 						relay_utils::relay_loop::reconnect_failed_client(
 							FailedClient::Source,
@@ -203,7 +220,8 @@ async fn background_task<P: SubstrateFinalitySyncPipeline>(
 						)
 						.await;
 						continue
-					},
+					}
+				},
 			}
 		}