diff --git a/conformance/driver.go b/conformance/driver.go
index c10f36c6e..940c137cf 100644
--- a/conformance/driver.go
+++ b/conformance/driver.go
@@ -14,6 +14,9 @@ import (
 	"github.com/filecoin-project/lotus/extern/sector-storage/ffiwrapper"
 	"github.com/filecoin-project/lotus/lib/blockstore"
 
+	_ "github.com/filecoin-project/lotus/lib/sigs/bls"  // enable bls signatures
+	_ "github.com/filecoin-project/lotus/lib/sigs/secp" // enable secp signatures
+
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/big"
 	"github.com/filecoin-project/go-state-types/crypto"
@@ -81,7 +84,7 @@ type ExecuteTipsetResult struct {
 // and reward withdrawal per miner.
 func (d *Driver) ExecuteTipset(bs blockstore.Blockstore, ds ds.Batching, preroot cid.Cid, parentEpoch abi.ChainEpoch, tipset *schema.Tipset) (*ExecuteTipsetResult, error) {
 	var (
-		syscalls = mkFakedSigSyscalls(vm.Syscalls(ffiwrapper.ProofVerifier))
+		syscalls = vm.Syscalls(ffiwrapper.ProofVerifier)
 		vmRand   = NewFixedRand()
 
 		cs = store.NewChainStore(bs, ds, syscalls)
@@ -173,7 +176,7 @@ func (d *Driver) ExecuteMessage(bs blockstore.Blockstore, params ExecuteMessageP
 		StateBase: params.Preroot,
 		Epoch:     params.Epoch,
 		Bstore:    bs,
-		Syscalls:  mkFakedSigSyscalls(vm.Syscalls(ffiwrapper.ProofVerifier)), // TODO always succeeds; need more flexibility.
+		Syscalls:  vm.Syscalls(ffiwrapper.ProofVerifier),
 		CircSupplyCalc: func(_ context.Context, _ abi.ChainEpoch, _ *state.StateTree) (abi.TokenAmount, error) {
 			return params.CircSupply, nil
 		},
diff --git a/conformance/stubs.go b/conformance/stubs.go
deleted file mode 100644
index 9307fdd65..000000000
--- a/conformance/stubs.go
+++ /dev/null
@@ -1,44 +0,0 @@
-package conformance
-
-import (
-	"context"
-
-	"github.com/filecoin-project/specs-actors/actors/runtime/proof"
-
-	"github.com/filecoin-project/go-address"
-
-	"github.com/filecoin-project/lotus/chain/state"
-	"github.com/filecoin-project/lotus/chain/vm"
-
-	"github.com/filecoin-project/go-state-types/crypto"
-	"github.com/filecoin-project/specs-actors/actors/runtime"
-
-	cbor "github.com/ipfs/go-ipld-cbor"
-)
-
-type testSyscalls struct {
-	runtime.Syscalls
-}
-
-// TODO VerifySignature this will always succeed; but we want to be able to test failures too.
-func (fss *testSyscalls) VerifySignature(_ crypto.Signature, _ address.Address, _ []byte) error {
-	return nil
-}
-
-// TODO VerifySeal this will always succeed; but we want to be able to test failures too.
-func (fss *testSyscalls) VerifySeal(_ proof.SealVerifyInfo) error {
-	return nil
-}
-
-// TODO VerifyPoSt this will always succeed; but we want to be able to test failures too.
-func (fss *testSyscalls) VerifyPoSt(_ proof.WindowPoStVerifyInfo) error {
-	return nil
-}
-
-func mkFakedSigSyscalls(base vm.SyscallBuilder) vm.SyscallBuilder {
-	return func(ctx context.Context, cstate *state.StateTree, cst cbor.IpldStore) runtime.Syscalls {
-		return &testSyscalls{
-			base(ctx, cstate, cst),
-		}
-	}
-}
diff --git a/extern/test-vectors b/extern/test-vectors
index 7471e2805..a8f968ade 160000
--- a/extern/test-vectors
+++ b/extern/test-vectors
@@ -1 +1 @@
-Subproject commit 7471e2805fc3e459e4ee325775633e8ec76cb7c6
+Subproject commit a8f968adeba1995f161f7be0048188affc425079