diff --git a/chain/validation/applier.go b/chain/validation/applier.go
index 5289f840b..f30c543bb 100644
--- a/chain/validation/applier.go
+++ b/chain/validation/applier.go
@@ -9,6 +9,7 @@ import (
 	"github.com/filecoin-project/specs-actors/actors/builtin"
 	"github.com/filecoin-project/specs-actors/actors/crypto"
 	"github.com/filecoin-project/specs-actors/actors/puppet"
+	"github.com/filecoin-project/specs-actors/actors/runtime"
 	"github.com/ipfs/go-cid"
 
 	vtypes "github.com/filecoin-project/chain-validation/chain/types"
@@ -24,12 +25,13 @@ import (
 // Applier applies messages to state trees and storage.
 type Applier struct {
 	stateWrapper *StateWrapper
+	syscalls     runtime.Syscalls
 }
 
 var _ vstate.Applier = &Applier{}
 
-func NewApplier(sw *StateWrapper) *Applier {
-	return &Applier{sw}
+func NewApplier(sw *StateWrapper, syscalls runtime.Syscalls) *Applier {
+	return &Applier{sw, syscalls}
 }
 
 func (a *Applier) ApplyMessage(epoch abi.ChainEpoch, message *vtypes.Message) (vtypes.ApplyMessageResult, error) {
@@ -65,7 +67,7 @@ func (a *Applier) ApplySignedMessage(epoch abi.ChainEpoch, msg *vtypes.SignedMes
 }
 
 func (a *Applier) ApplyTipSetMessages(epoch abi.ChainEpoch, blocks []vtypes.BlockMessagesInfo, rnd vstate.RandomnessSource) (vtypes.ApplyTipSetResult, error) {
-	cs := store.NewChainStore(a.stateWrapper.bs, a.stateWrapper.ds, vdrivers.NewChainValidationSyscalls())
+	cs := store.NewChainStore(a.stateWrapper.bs, a.stateWrapper.ds, a.syscalls)
 	sm := stmgr.NewStateManager(cs)
 
 	var bms []stmgr.BlockMessages
diff --git a/chain/validation/factories.go b/chain/validation/factories.go
index 223382538..d3771d87d 100644
--- a/chain/validation/factories.go
+++ b/chain/validation/factories.go
@@ -1,11 +1,9 @@
 package validation
 
 import (
-	"context"
+	"github.com/filecoin-project/specs-actors/actors/runtime"
 
 	vstate "github.com/filecoin-project/chain-validation/state"
-	"github.com/filecoin-project/specs-actors/actors/abi"
-	acrypto "github.com/filecoin-project/specs-actors/actors/crypto"
 )
 
 type Factories struct {
@@ -18,26 +16,15 @@ func NewFactories() *Factories {
 	return &Factories{}
 }
 
-func (f *Factories) NewStateAndApplier() (vstate.VMWrapper, vstate.Applier) {
+func (f *Factories) NewStateAndApplier(syscalls runtime.Syscalls) (vstate.VMWrapper, vstate.Applier) {
 	st := NewState()
-	return st, NewApplier(st)
+	return st, NewApplier(st, syscalls)
 }
 
 func (f *Factories) NewKeyManager() vstate.KeyManager {
 	return newKeyManager()
 }
 
-type fakeRandSrc struct {
-}
-
-func (r fakeRandSrc) Randomness(_ context.Context, _ acrypto.DomainSeparationTag, _ abi.ChainEpoch, _ []byte) (abi.Randomness, error) {
-	return abi.Randomness("sausages"), nil
-}
-
-func (f *Factories) NewRandomnessSource() vstate.RandomnessSource {
-	return &fakeRandSrc{}
-}
-
 func (f *Factories) NewValidationConfig() vstate.ValidationConfig {
 	trackGas := true
 	checkExit := true