diff --git a/contractcourt/htlc_timeout_resolver.go b/contractcourt/htlc_timeout_resolver.go
index 095e538e4..0b3e8688d 100644
--- a/contractcourt/htlc_timeout_resolver.go
+++ b/contractcourt/htlc_timeout_resolver.go
@@ -327,6 +327,7 @@ func (h *htlcTimeoutResolver) sweepSecondLevelTx() error {
 			Fee: sweep.FeePreference{
 				ConfTarget: secondLevelConfTarget,
 			},
+			Force: true,
 		},
 	)
 
diff --git a/contractcourt/utxonursery.go b/contractcourt/utxonursery.go
index 08b4a32be..3776a3546 100644
--- a/contractcourt/utxonursery.go
+++ b/contractcourt/utxonursery.go
@@ -781,9 +781,10 @@ func (u *UtxoNursery) sweepMatureOutputs(classHeight uint32,
 		// passed in with disastrous consequences.
 		local := output
 
-		resultChan, err := u.cfg.SweepInput(
-			&local, sweep.Params{Fee: feePref},
-		)
+		resultChan, err := u.cfg.SweepInput(&local, sweep.Params{
+			Fee:   feePref,
+			Force: true,
+		})
 		if err != nil {
 			return err
 		}