diff --git a/checks.go b/checks.go
index c7bec0228..ce0f5c385 100644
--- a/checks.go
+++ b/checks.go
@@ -90,7 +90,7 @@ func checkSeal(ctx context.Context, maddr address.Address, si SectorInfo, api se
 		From:     maddr,
 		Value:    types.NewInt(0),
 		GasPrice: types.NewInt(0),
-		GasLimit: types.NewInt(9999999999),
+		GasLimit: 9999999999,
 		Method:   builtin.MethodsMarket.ComputeDataCommitment,
 		Params:   ccparams,
 	}
diff --git a/states.go b/states.go
index e12860447..f66c97905 100644
--- a/states.go
+++ b/states.go
@@ -121,7 +121,7 @@ func (m *Sealing) handlePreCommitting(ctx statemachine.Context, sector SectorInf
 		Method:   builtin.MethodsMiner.PreCommitSector,
 		Params:   enc,
 		Value:    types.NewInt(0), // TODO: need to ensure sufficient collateral
-		GasLimit: types.NewInt(1000000 /* i dont know help */),
+		GasLimit: 1000000,         /* i dont know help */
 		GasPrice: types.NewInt(1),
 	}
 
@@ -212,7 +212,7 @@ func (m *Sealing) handleCommitting(ctx statemachine.Context, sector SectorInfo)
 		Method:   builtin.MethodsMiner.ProveCommitSector,
 		Params:   enc,
 		Value:    types.NewInt(0), // TODO: need to ensure sufficient collateral
-		GasLimit: types.NewInt(1000000 /* i dont know help */),
+		GasLimit: 1000000,         /* i dont know help */
 		GasPrice: types.NewInt(1),
 	}
 
@@ -278,7 +278,7 @@ func (m *Sealing) handleFaulty(ctx statemachine.Context, sector SectorInfo) erro
 		Method:   builtin.MethodsMiner.DeclareTemporaryFaults,
 		Params:   enc,
 		Value:    types.NewInt(0), // TODO: need to ensure sufficient collateral
-		GasLimit: types.NewInt(1000000 /* i dont know help */),
+		GasLimit: 1000000,         /* i dont know help */
 		GasPrice: types.NewInt(1),
 	}