diff --git a/build/params_wallaby.go b/build/params_wallaby.go
index 70e761114..2f9cae09c 100644
--- a/build/params_wallaby.go
+++ b/build/params_wallaby.go
@@ -4,19 +4,20 @@
 package build
 
 import (
+	"github.com/filecoin-project/go-address"
 	"github.com/ipfs/go-cid"
 
-	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
+	actorstypes "github.com/filecoin-project/go-state-types/actors"
 	"github.com/filecoin-project/go-state-types/network"
+
 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
 
-	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/actors/policy"
 )
 
 var NetworkBundle = "wallaby"
-var BundleOverrides map[actors.Version]string
+var BundleOverrides map[actorstypes.Version]string
 var ActorDebugging = true
 
 const BootstrappersFile = "wallabynet.pi"
@@ -52,6 +53,7 @@ var UpgradeHyperdriveHeight = abi.ChainEpoch(-16)
 var UpgradeChocolateHeight = abi.ChainEpoch(-17)
 var UpgradeOhSnapHeight = abi.ChainEpoch(-18)
 var UpgradeSkyrHeight = abi.ChainEpoch(-19)
+var UpgradeSharkHeight = abi.ChainEpoch(-20)
 
 var DrandSchedule = map[abi.ChainEpoch]DrandEnum{
 	0: DrandMainnet,