diff --git a/build/params_testground.go b/build/params_testground.go
index 50ade70c0..395d2a855 100644
--- a/build/params_testground.go
+++ b/build/params_testground.go
@@ -11,6 +11,7 @@ import (
 	"math/big"
 
 	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/network"
 	"github.com/filecoin-project/specs-actors/actors/builtin"
 	"github.com/filecoin-project/specs-actors/actors/builtin/miner"
 )
@@ -73,9 +74,11 @@ var (
 	UpgradeBreezeHeight      abi.ChainEpoch = -1
 	BreezeGasTampingDuration abi.ChainEpoch = 0
 
-	UpgradeSmokeHeight = -1
+	UpgradeSmokeHeight abi.ChainEpoch = -1
 
 	DrandSchedule = map[abi.ChainEpoch]DrandEnum{
 		0: DrandMainnet,
 	}
+
+	NewestNetworkVersion = network.Version2
 )