diff --git a/engine/execution/block_result_test.go b/engine/execution/block_result_test.go
index a96e3576728..3890f476e87 100644
--- a/engine/execution/block_result_test.go
+++ b/engine/execution/block_result_test.go
@@ -26,6 +26,8 @@ func makeBlockExecutionResultFixture(serviceEventsPerChunk []int) *BlockExecutio
 
 // Tests that ServiceEventCountForChunk method works as expected under various circumstances:
 func TestBlockExecutionResult_ServiceEventCountForChunk(t *testing.T) {
+	t.Parallel()
+
 	t.Run("no service events", func(t *testing.T) {
 		nChunks := rand.Intn(10) + 1 // always contains at least system chunk
 		blockResult := makeBlockExecutionResultFixture(make([]int, nChunks))
diff --git a/engine/execution/computation/execution_verification_test.go b/engine/execution/computation/execution_verification_test.go
index 21500d43a4d..7aef67b3d1f 100644
--- a/engine/execution/computation/execution_verification_test.go
+++ b/engine/execution/computation/execution_verification_test.go
@@ -56,6 +56,9 @@ var chain = flow.Emulator.Chain()
 // This is not relevant to the test, as only the non-system transactions are tested.
 
 func Test_ExecutionMatchesVerification(t *testing.T) {
+
+	t.Parallel()
+
 	t.Run("empty block", func(t *testing.T) {
 		executeBlockAndVerify(t,
 			[][]*flow.TransactionBody{},
@@ -339,6 +342,7 @@ func Test_ExecutionMatchesVerification(t *testing.T) {
 }
 
 func TestTransactionFeeDeduction(t *testing.T) {
+	t.Parallel()
 
 	type testCase struct {
 		name          string
diff --git a/engine/execution/computation/manager_test.go b/engine/execution/computation/manager_test.go
index b265f94268d..c5a5f885b8d 100644
--- a/engine/execution/computation/manager_test.go
+++ b/engine/execution/computation/manager_test.go
@@ -51,6 +51,8 @@ import (
 var scriptLogThreshold = 1 * time.Second
 
 func TestComputeBlockWithStorage(t *testing.T) {
+	t.Parallel()
+
 	chain := flow.Mainnet.Chain()
 
 	vm := fvm.NewVirtualMachine()
@@ -180,6 +182,7 @@ func TestComputeBlockWithStorage(t *testing.T) {
 }
 
 func TestComputeBlock_Uploader(t *testing.T) {
+	t.Parallel()
 
 	noopCollector := &metrics.NoopCollector{}
 
@@ -230,6 +233,7 @@ func TestComputeBlock_Uploader(t *testing.T) {
 }
 
 func TestExecuteScript(t *testing.T) {
+	t.Parallel()
 
 	logger := zerolog.Nop()
 
@@ -296,6 +300,7 @@ func TestExecuteScript(t *testing.T) {
 // Balance script used to swallow errors, which meant that even if the view was empty, a script that did nothing but get
 // the balance of an account would succeed and return 0.
 func TestExecuteScript_BalanceScriptFailsIfViewIsEmpty(t *testing.T) {
+	t.Parallel()
 
 	logger := zerolog.Nop()
 
@@ -361,6 +366,7 @@ func TestExecuteScript_BalanceScriptFailsIfViewIsEmpty(t *testing.T) {
 }
 
 func TestExecuteScripPanicsAreHandled(t *testing.T) {
+	t.Parallel()
 
 	ctx := fvm.NewContext()
 
@@ -411,6 +417,7 @@ func TestExecuteScripPanicsAreHandled(t *testing.T) {
 }
 
 func TestExecuteScript_LongScriptsAreLogged(t *testing.T) {
+	t.Parallel()
 
 	ctx := fvm.NewContext()
 
@@ -464,6 +471,7 @@ func TestExecuteScript_LongScriptsAreLogged(t *testing.T) {
 }
 
 func TestExecuteScript_ShortScriptsAreNotLogged(t *testing.T) {
+	t.Parallel()
 
 	ctx := fvm.NewContext()
 
@@ -647,6 +655,7 @@ func (f *FakeBlockComputer) ExecuteBlock(
 }
 
 func TestExecuteScriptTimeout(t *testing.T) {
+	t.Parallel()
 
 	timeout := 1 * time.Millisecond
 	manager, err := New(
@@ -694,6 +703,7 @@ func TestExecuteScriptTimeout(t *testing.T) {
 }
 
 func TestExecuteScriptCancelled(t *testing.T) {
+	t.Parallel()
 
 	timeout := 30 * time.Second
 	manager, err := New(
@@ -750,6 +760,7 @@ func TestExecuteScriptCancelled(t *testing.T) {
 }
 
 func Test_EventEncodingFailsOnlyTxAndCarriesOn(t *testing.T) {
+	t.Parallel()
 
 	chain := flow.Mainnet.Chain()
 	vm := fvm.NewVirtualMachine()
@@ -908,6 +919,7 @@ func (e *testingEventEncoder) Encode(event cadence.Event) ([]byte, error) {
 }
 
 func TestScriptStorageMutationsDiscarded(t *testing.T) {
+	t.Parallel()
 
 	timeout := 10 * time.Second
 	chain := flow.Mainnet.Chain()
diff --git a/engine/execution/computation/programs_test.go b/engine/execution/computation/programs_test.go
index b8dc91a6c2c..883775b6241 100644
--- a/engine/execution/computation/programs_test.go
+++ b/engine/execution/computation/programs_test.go
@@ -40,6 +40,8 @@ const (
 )
 
 func TestPrograms_TestContractUpdates(t *testing.T) {
+	t.Parallel()
+
 	chain := flow.Mainnet.Chain()
 	vm := fvm.NewVirtualMachine()
 	execCtx := fvm.NewContext(fvm.WithChain(chain))
@@ -215,6 +217,8 @@ func (b blockProvider) ByHeightFrom(height uint64, _ *flow.Header) (*flow.Header
 //	        -> Block121 (emit event - version should be 2)
 //	            -> Block1211 (emit event - version should be 2)
 func TestPrograms_TestBlockForks(t *testing.T) {
+	t.Parallel()
+
 	block := unittest.BlockFixture()
 	chain := flow.Emulator.Chain()
 	vm := fvm.NewVirtualMachine()
diff --git a/engine/execution/execution_test.go b/engine/execution/execution_test.go
index 10b3e4d97ca..065a0c0a64e 100644
--- a/engine/execution/execution_test.go
+++ b/engine/execution/execution_test.go
@@ -38,6 +38,8 @@ func sendBlock(exeNode *testmock.ExecutionNode, from flow.Identifier, proposal *
 // create another child block which will trigger the parent
 // block to be incorporated and be passed to the ingestion engine
 func TestExecutionFlow(t *testing.T) {
+	t.Parallel()
+
 	hub := stub.NewNetworkHub()
 
 	chainID := flow.Testnet
@@ -383,6 +385,8 @@ func makeSuccessBlock(t *testing.T, conID *flow.Identity, colID *flow.Identity,
 // Test a successful tx should change the statecommitment,
 // but a failed Tx should not change the statecommitment.
 func TestFailedTxWillNotChangeStateCommitment(t *testing.T) {
+	t.Parallel()
+
 	hub := stub.NewNetworkHub()
 
 	chainID := flow.Emulator
@@ -547,6 +551,8 @@ func mockCollectionEngineToReturnCollections(t *testing.T, collectionNode *testm
 
 // Test the receipt will be sent to multiple verification nodes
 func TestBroadcastToMultipleVerificationNodes(t *testing.T) {
+	t.Parallel()
+
 	hub := stub.NewNetworkHub()
 
 	chainID := flow.Emulator
diff --git a/fvm/accounts_test.go b/fvm/accounts_test.go
index 0746f505efc..86179587b4b 100644
--- a/fvm/accounts_test.go
+++ b/fvm/accounts_test.go
@@ -360,6 +360,8 @@ func newAccountKey(
 
 func TestCreateAccount(t *testing.T) {
 
+	t.Parallel()
+
 	options := []fvm.Option{
 		fvm.WithAuthorizationChecksEnabled(false),
 		fvm.WithSequenceNumberCheckAndIncrementEnabled(false),
@@ -469,6 +471,8 @@ func TestCreateAccount(t *testing.T) {
 
 func TestCreateAccount_WithRestrictedAccountCreation(t *testing.T) {
 
+	t.Parallel()
+
 	options := []fvm.Option{
 		fvm.WithAuthorizationChecksEnabled(false),
 		fvm.WithSequenceNumberCheckAndIncrementEnabled(false),
@@ -614,6 +618,8 @@ func TestCreateAccount_WithRestrictedAccountCreation(t *testing.T) {
 
 func TestAddAccountKey(t *testing.T) {
 
+	t.Parallel()
+
 	options := []fvm.Option{
 		fvm.WithAuthorizationChecksEnabled(false),
 		fvm.WithSequenceNumberCheckAndIncrementEnabled(false),
@@ -932,6 +938,8 @@ func TestAddAccountKey(t *testing.T) {
 
 func TestRemoveAccountKey(t *testing.T) {
 
+	t.Parallel()
+
 	options := []fvm.Option{
 		fvm.WithAuthorizationChecksEnabled(false),
 		fvm.WithSequenceNumberCheckAndIncrementEnabled(false),
@@ -1211,6 +1219,8 @@ func TestRemoveAccountKey(t *testing.T) {
 
 func TestGetAccountKey(t *testing.T) {
 
+	t.Parallel()
+
 	options := []fvm.Option{
 		fvm.WithAuthorizationChecksEnabled(false),
 		fvm.WithSequenceNumberCheckAndIncrementEnabled(false),
@@ -1483,6 +1493,9 @@ func byteSliceToCadenceArrayLiteral(bytes []byte) string {
 }
 
 func TestAccountBalanceFields(t *testing.T) {
+
+	t.Parallel()
+
 	t.Run("Get balance works",
 		newVMTest().withContextOptions(
 			fvm.WithAuthorizationChecksEnabled(false),
@@ -1725,6 +1738,9 @@ func TestAccountBalanceFields(t *testing.T) {
 }
 
 func TestGetStorageCapacity(t *testing.T) {
+
+	t.Parallel()
+
 	t.Run("Get storage capacity",
 		newVMTest().withContextOptions(
 			fvm.WithAuthorizationChecksEnabled(false),
diff --git a/fvm/environment/programs_test.go b/fvm/environment/programs_test.go
index 57ce7ee4b7c..092fb22b043 100644
--- a/fvm/environment/programs_test.go
+++ b/fvm/environment/programs_test.go
@@ -147,6 +147,8 @@ func getTestContract(
 }
 
 func Test_Programs(t *testing.T) {
+	t.Parallel()
+
 	vm := fvm.NewVirtualMachine()
 	derivedBlockData := derived.NewEmptyDerivedBlockData(0)
 
diff --git a/fvm/fvm_blockcontext_test.go b/fvm/fvm_blockcontext_test.go
index 4974acc22b9..90ed8045470 100644
--- a/fvm/fvm_blockcontext_test.go
+++ b/fvm/fvm_blockcontext_test.go
@@ -1751,6 +1751,8 @@ func TestBlockContext_GetAccount(t *testing.T) {
 }
 
 func TestBlockContext_Random(t *testing.T) {
+	t.Parallel()
+
 	chain, vm := createChainAndVm(flow.Mainnet)
 	header := &flow.Header{HeaderBody: flow.HeaderBody{Height: 42}}
 	source := testutil.EntropyProviderFixture(nil)
@@ -1906,6 +1908,8 @@ func TestBlockContext_ExecuteTransaction_CreateAccount_WithMonotonicAddresses(t
 }
 
 func TestBlockContext_ExecuteTransaction_FailingTransactions(t *testing.T) {
+	t.Parallel()
+
 	getBalance := func(
 		vm fvm.VM,
 		chain flow.Chain,
diff --git a/fvm/fvm_test.go b/fvm/fvm_test.go
index c5939f6a27b..57f159d94a9 100644
--- a/fvm/fvm_test.go
+++ b/fvm/fvm_test.go
@@ -474,6 +474,8 @@ func TestWithServiceAccount(t *testing.T) {
 }
 
 func TestEventLimits(t *testing.T) {
+	t.Parallel()
+
 	chain, vm := createChainAndVm(flow.Mainnet)
 
 	ctx := fvm.NewContext(
@@ -579,6 +581,7 @@ func TestEventLimits(t *testing.T) {
 // TestHappyPathSigning checks that a signing a transaction with `Sign` doesn't produce an error.
 // Transaction verification tests are in `TestVerifySignatureFromTransaction`.
 func TestHappyPathTransactionSigning(t *testing.T) {
+	t.Parallel()
 
 	newVMTest().run(
 		func(t *testing.T, vm fvm.VM, chain flow.Chain, ctx fvm.Context, snapshotTree snapshot.SnapshotTree) {
@@ -620,6 +623,8 @@ func TestHappyPathTransactionSigning(t *testing.T) {
 }
 
 func TestTransactionFeeDeduction(t *testing.T) {
+	t.Parallel()
+
 	getBalance := func(vm fvm.VM, chain flow.Chain, ctx fvm.Context, snapshotTree snapshot.SnapshotTree, address flow.Address) uint64 {
 		sc := systemcontracts.SystemContractsForChain(chain.ChainID())
 		code := []byte(fmt.Sprintf(
@@ -1098,6 +1103,7 @@ func TestTransactionFeeDeduction(t *testing.T) {
 }
 
 func TestSettingExecutionWeights(t *testing.T) {
+	t.Parallel()
 
 	// change the chain so that the metering settings are read from the service account
 	chain := flow.Emulator.Chain()
@@ -1837,6 +1843,8 @@ func TestEnforcingComputationLimit(t *testing.T) {
 }
 
 func TestStorageCapacity(t *testing.T) {
+	t.Parallel()
+
 	t.Run("Storage capacity updates on FLOW transfer", newVMTest().
 		withContextOptions(
 			fvm.WithAuthorizationChecksEnabled(false),
@@ -2328,6 +2336,9 @@ func TestScriptExecutionLimit(t *testing.T) {
 }
 
 func TestInteractionLimit(t *testing.T) {
+
+	t.Parallel()
+
 	type testCase struct {
 		name             string
 		interactionLimit uint64
@@ -2497,6 +2508,7 @@ func TestInteractionLimit(t *testing.T) {
 }
 
 func TestAttachments(t *testing.T) {
+	t.Parallel()
 
 	newVMTest().
 		withBootstrapProcedureOptions().
@@ -2531,6 +2543,8 @@ func TestAttachments(t *testing.T) {
 }
 
 func TestCapabilityControllers(t *testing.T) {
+	t.Parallel()
+
 	test := func(t *testing.T) {
 		newVMTest().
 			withBootstrapProcedureOptions().
@@ -2800,6 +2814,8 @@ func TestStorageIterationWithBrokenValues(t *testing.T) {
 }
 
 func TestEntropyCallOnlyOkIfAllowed(t *testing.T) {
+	t.Parallel()
+
 	source := testutil.EntropyProviderFixture(nil)
 
 	test := func(t *testing.T, allowed bool) {
@@ -2859,6 +2875,8 @@ func TestEntropyCallOnlyOkIfAllowed(t *testing.T) {
 }
 
 func TestEntropyCallExpectsNoParameters(t *testing.T) {
+	t.Parallel()
+
 	source := testutil.EntropyProviderFixture(nil)
 	newVMTest().
 		withBootstrapProcedureOptions().
@@ -2902,6 +2920,7 @@ func TestEntropyCallExpectsNoParameters(t *testing.T) {
 }
 
 func TestTransientNetworkCoreContractAddresses(t *testing.T) {
+	t.Parallel()
 
 	// This test ensures that the transient networks have the correct core contract addresses.
 	newVMTest().
@@ -2927,6 +2946,8 @@ func TestTransientNetworkCoreContractAddresses(t *testing.T) {
 }
 
 func TestFlowCallbackScheduler(t *testing.T) {
+	t.Parallel()
+
 	ctxOpts := []fvm.Option{
 		fvm.WithScheduleCallbacksEnabled(true),
 	}
@@ -2975,6 +2996,8 @@ func TestFlowCallbackScheduler(t *testing.T) {
 }
 
 func TestEVM(t *testing.T) {
+	t.Parallel()
+
 	blocks := new(envMock.Blocks)
 	block1 := unittest.BlockFixture()
 	blocks.On("ByHeightFrom",
@@ -3244,6 +3267,8 @@ func TestEVM(t *testing.T) {
 }
 
 func TestVMBridge(t *testing.T) {
+	t.Parallel()
+
 	blocks := new(envMock.Blocks)
 	block1 := unittest.BlockFixture()
 	blocks.On("ByHeightFrom",
@@ -3812,6 +3837,7 @@ func TestVMBridge(t *testing.T) {
 }
 
 func TestAccountCapabilitiesGetEntitledRejection(t *testing.T) {
+	t.Parallel()
 
 	// Note: This cannot be tested anymore using a transaction,
 	// because publish method also aborts when trying to publish an entitled capability.
@@ -3874,6 +3900,7 @@ func TestAccountCapabilitiesGetEntitledRejection(t *testing.T) {
 }
 
 func TestAccountCapabilitiesPublishEntitledRejection(t *testing.T) {
+	t.Parallel()
 
 	t.Run("entitled capability", newVMTest().
 		run(func(
@@ -4131,6 +4158,7 @@ func TestCrypto(t *testing.T) {
 }
 
 func Test_BlockHashListShouldWriteOnPush(t *testing.T) {
+	t.Parallel()
 
 	chain := flow.Emulator.Chain()
 	sc := systemcontracts.SystemContractsForChain(chain.ChainID())
diff --git a/fvm/transactionVerifier_test.go b/fvm/transactionVerifier_test.go
index 7d222bac013..e1b5aba4808 100644
--- a/fvm/transactionVerifier_test.go
+++ b/fvm/transactionVerifier_test.go
@@ -17,6 +17,8 @@ import (
 )
 
 func TestTransactionVerification(t *testing.T) {
+	t.Parallel()
+
 	txnState := testutils.NewSimpleTransaction(nil)
 	accounts := environment.NewAccounts(txnState)