diff --git a/runtime/kusama/src/lib.rs b/runtime/kusama/src/lib.rs
index d0e92134fb61..dce781b533f5 100644
--- a/runtime/kusama/src/lib.rs
+++ b/runtime/kusama/src/lib.rs
@@ -1480,6 +1480,9 @@ impl Get<&'static str> for StakingMigrationV11OldPallet {
 	}
 }
 
+/// All migrations that will run on the next runtime upgrade.
+///
+/// Should be cleared after every release.
 pub type Migrations = (
 	pallet_balances::migration::MigrateToTrackInactive<Runtime, CheckAccount>,
 	crowdloan::migration::MigrateToTrackInactive<Runtime>,
@@ -1488,6 +1491,7 @@ pub type Migrations = (
 		Runtime,
 		governance::FellowshipReferendaInstance,
 	>,
+	pallet_scheduler::migration::v4::CleanupAgendas<Runtime>,
 );
 
 /// Unchecked extrinsic type as expected by this runtime.
diff --git a/runtime/polkadot/src/lib.rs b/runtime/polkadot/src/lib.rs
index 8c4d85afb67d..453931880431 100644
--- a/runtime/polkadot/src/lib.rs
+++ b/runtime/polkadot/src/lib.rs
@@ -1597,9 +1597,13 @@ impl Get<&'static str> for StakingMigrationV11OldPallet {
 	}
 }
 
+/// All migrations that will run on the next runtime upgrade.
+///
+/// Should be cleared after every release.
 pub type Migrations = (
 	pallet_balances::migration::MigrateToTrackInactive<Runtime, xcm_config::CheckAccount>,
 	crowdloan::migration::MigrateToTrackInactive<Runtime>,
+	pallet_scheduler::migration::v4::CleanupAgendas<Runtime>,
 );
 
 /// Unchecked extrinsic type as expected by this runtime.
diff --git a/runtime/rococo/src/lib.rs b/runtime/rococo/src/lib.rs
index bcf0a03c9456..91a095cf23f5 100644
--- a/runtime/rococo/src/lib.rs
+++ b/runtime/rococo/src/lib.rs
@@ -1477,9 +1477,13 @@ pub type SignedExtra = (
 pub type UncheckedExtrinsic =
 	generic::UncheckedExtrinsic<Address, RuntimeCall, Signature, SignedExtra>;
 
+/// All migrations that will run on the next runtime upgrade.
+///
+/// Should be cleared after every release.
 pub type Migrations = (
 	pallet_balances::migration::MigrateToTrackInactive<Runtime, xcm_config::CheckAccount>,
 	crowdloan::migration::MigrateToTrackInactive<Runtime>,
+	pallet_scheduler::migration::v4::CleanupAgendas<Runtime>,
 );
 
 /// Executive: handles dispatch to the various modules.
diff --git a/runtime/westend/src/lib.rs b/runtime/westend/src/lib.rs
index 7118ad1e780b..f1d99ebb8dc7 100644
--- a/runtime/westend/src/lib.rs
+++ b/runtime/westend/src/lib.rs
@@ -1211,9 +1211,13 @@ impl Get<&'static str> for StakingMigrationV11OldPallet {
 	}
 }
 
+/// All migrations that will run on the next runtime upgrade.
+///
+/// Should be cleared after every release.
 pub type Migrations = (
 	pallet_balances::migration::MigrateToTrackInactive<Runtime, xcm_config::CheckAccount>,
 	crowdloan::migration::MigrateToTrackInactive<Runtime>,
+	pallet_scheduler::migration::v4::CleanupAgendas<Runtime>,
 );
 
 /// Unchecked extrinsic type as expected by this runtime.