diff --git a/miner/miner_test.go b/miner/miner_test.go
index 36d5166c6..411d6026c 100644
--- a/miner/miner_test.go
+++ b/miner/miner_test.go
@@ -99,6 +99,7 @@ func (bc *testBlockChain) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent)
 }
 
 func TestMiner(t *testing.T) {
+	t.Parallel()
 	miner, mux, cleanup := createMiner(t)
 	defer cleanup(false)
 
@@ -128,6 +129,7 @@ func TestMiner(t *testing.T) {
 // An initial FailedEvent should allow mining to stop on a subsequent
 // downloader StartEvent.
 func TestMinerDownloaderFirstFails(t *testing.T) {
+	t.Parallel()
 	miner, mux, cleanup := createMiner(t)
 	defer cleanup(false)
 
@@ -161,6 +163,7 @@ func TestMinerDownloaderFirstFails(t *testing.T) {
 }
 
 func TestMinerStartStopAfterDownloaderEvents(t *testing.T) {
+	t.Parallel()
 	miner, mux, cleanup := createMiner(t)
 	defer cleanup(false)
 
@@ -185,6 +188,7 @@ func TestMinerStartStopAfterDownloaderEvents(t *testing.T) {
 }
 
 func TestStartWhileDownload(t *testing.T) {
+	t.Parallel()
 	miner, mux, cleanup := createMiner(t)
 	defer cleanup(false)
 	waitForMiningState(t, miner, false)
@@ -199,6 +203,7 @@ func TestStartWhileDownload(t *testing.T) {
 }
 
 func TestStartStopMiner(t *testing.T) {
+	t.Parallel()
 	miner, _, cleanup := createMiner(t)
 	defer cleanup(false)
 	waitForMiningState(t, miner, false)
@@ -209,6 +214,7 @@ func TestStartStopMiner(t *testing.T) {
 }
 
 func TestCloseMiner(t *testing.T) {
+	t.Parallel()
 	miner, _, cleanup := createMiner(t)
 	defer cleanup(true)
 	waitForMiningState(t, miner, false)
@@ -222,6 +228,7 @@ func TestCloseMiner(t *testing.T) {
 // TestMinerSetEtherbase checks that etherbase becomes set even if mining isn't
 // possible at the moment
 func TestMinerSetEtherbase(t *testing.T) {
+	t.Parallel()
 	miner, mux, cleanup := createMiner(t)
 	defer cleanup(false)
 	miner.Start()
diff --git a/miner/ordering_test.go b/miner/ordering_test.go
index 59d478274..e5868d7a0 100644
--- a/miner/ordering_test.go
+++ b/miner/ordering_test.go
@@ -30,10 +30,12 @@ import (
 )
 
 func TestTransactionPriceNonceSortLegacy(t *testing.T) {
+	t.Parallel()
 	testTransactionPriceNonceSort(t, nil)
 }
 
 func TestTransactionPriceNonceSort1559(t *testing.T) {
+	t.Parallel()
 	testTransactionPriceNonceSort(t, big.NewInt(0))
 	testTransactionPriceNonceSort(t, big.NewInt(5))
 	testTransactionPriceNonceSort(t, big.NewInt(50))
@@ -138,6 +140,7 @@ func testTransactionPriceNonceSort(t *testing.T, baseFee *big.Int) {
 // Tests that if multiple transactions have the same price, the ones seen earlier
 // are prioritized to avoid network spam attacks aiming for a specific ordering.
 func TestTransactionTimeSort(t *testing.T) {
+	t.Parallel()
 	// Generate a batch of accounts to start with
 	keys := make([]*ecdsa.PrivateKey, 5)
 	for i := 0; i < len(keys); i++ {
diff --git a/miner/payload_building_test.go b/miner/payload_building_test.go
index 6f5736344..928363522 100644
--- a/miner/payload_building_test.go
+++ b/miner/payload_building_test.go
@@ -30,6 +30,7 @@ import (
 )
 
 func TestBuildPayload(t *testing.T) {
+	t.Parallel()
 	var (
 		db        = rawdb.NewMemoryDatabase()
 		recipient = common.HexToAddress("0xdeadbeef")
@@ -82,6 +83,7 @@ func TestBuildPayload(t *testing.T) {
 }
 
 func TestPayloadId(t *testing.T) {
+	t.Parallel()
 	ids := make(map[string]int)
 	for i, tt := range []*BuildPayloadArgs{
 		{
diff --git a/miner/worker_test.go b/miner/worker_test.go
index 9c4694c0e..59fbbbcdc 100644
--- a/miner/worker_test.go
+++ b/miner/worker_test.go
@@ -167,6 +167,7 @@ func newTestWorker(t *testing.T, chainConfig *params.ChainConfig, engine consens
 }
 
 func TestGenerateAndImportBlock(t *testing.T) {
+	t.Parallel()
 	var (
 		db     = rawdb.NewMemoryDatabase()
 		config = *params.AllCliqueProtocolChanges
@@ -210,9 +211,11 @@ func TestGenerateAndImportBlock(t *testing.T) {
 }
 
 func TestEmptyWorkEthash(t *testing.T) {
+	t.Parallel()
 	testEmptyWork(t, ethashChainConfig, ethash.NewFaker())
 }
 func TestEmptyWorkClique(t *testing.T) {
+	t.Parallel()
 	testEmptyWork(t, cliqueChainConfig, clique.New(cliqueChainConfig.Clique, rawdb.NewMemoryDatabase()))
 }
 
@@ -252,10 +255,12 @@ func testEmptyWork(t *testing.T, chainConfig *params.ChainConfig, engine consens
 }
 
 func TestAdjustIntervalEthash(t *testing.T) {
+	t.Parallel()
 	testAdjustInterval(t, ethashChainConfig, ethash.NewFaker())
 }
 
 func TestAdjustIntervalClique(t *testing.T) {
+	t.Parallel()
 	testAdjustInterval(t, cliqueChainConfig, clique.New(cliqueChainConfig.Clique, rawdb.NewMemoryDatabase()))
 }
 
@@ -346,14 +351,17 @@ func testAdjustInterval(t *testing.T, chainConfig *params.ChainConfig, engine co
 }
 
 func TestGetSealingWorkEthash(t *testing.T) {
+	t.Parallel()
 	testGetSealingWork(t, ethashChainConfig, ethash.NewFaker())
 }
 
 func TestGetSealingWorkClique(t *testing.T) {
+	t.Parallel()
 	testGetSealingWork(t, cliqueChainConfig, clique.New(cliqueChainConfig.Clique, rawdb.NewMemoryDatabase()))
 }
 
 func TestGetSealingWorkPostMerge(t *testing.T) {
+	t.Parallel()
 	local := new(params.ChainConfig)
 	*local = *ethashChainConfig
 	local.TerminalTotalDifficulty = big.NewInt(0)