diff --git a/cli/builder/builder.go b/cli/builder/builder.go
index af451d9e78..37617fd761 100644
--- a/cli/builder/builder.go
+++ b/cli/builder/builder.go
@@ -120,7 +120,7 @@ func (cb *CLIBuilder) InterceptConfigsPreRunHandler(
 	cmd *cobra.Command,
 	logger *phuslu.Logger,
 	customAppConfigTemplate string,
-	customAppConfig interface{},
+	customAppConfig any,
 	cmtConfig *cmtcfg.Config,
 ) error {
 	return config.SetupCommand(
diff --git a/cli/commands/genesis/storage.go b/cli/commands/genesis/storage.go
index 1d24e54118..143f03b26b 100644
--- a/cli/commands/genesis/storage.go
+++ b/cli/commands/genesis/storage.go
@@ -160,7 +160,7 @@ func writeGenesisAllocToFile(
 	}
 
 	// Unmarshal existing genesis using json.Number to preserve integer precision
-	var existingGenesis map[string]interface{}
+	var existingGenesis map[string]any
 	decoder := json.NewDecoder(bytes.NewReader(existingBz))
 	decoder.UseNumber()
 	if err = decoder.Decode(&existingGenesis); err != nil {
@@ -168,7 +168,7 @@ func writeGenesisAllocToFile(
 	}
 
 	// Get existing alloc.
-	alloc, ok := existingGenesis[allocsKey].(map[string]interface{})
+	alloc, ok := existingGenesis[allocsKey].(map[string]any)
 	if !ok {
 		return errors.New("invalid alloc format in genesis file")
 	}
diff --git a/cli/commands/genesis/storage_test.go b/cli/commands/genesis/storage_test.go
index 3c55c74c66..afcbca3106 100644
--- a/cli/commands/genesis/storage_test.go
+++ b/cli/commands/genesis/storage_test.go
@@ -91,9 +91,9 @@ func setupMockGenesis(t *testing.T, tmpDir string) string {
 	depositAddr := common.Address(chainSpec.DepositContractAddress())
 
 	mockGenesisPath := filepath.Join(tmpDir, "genesis.json")
-	mockGenesis := map[string]interface{}{
-		"alloc": map[string]interface{}{
-			depositAddr.Hex(): map[string]interface{}{
+	mockGenesis := map[string]any{
+		"alloc": map[string]any{
+			depositAddr.Hex(): map[string]any{
 				"balance": "0x0",
 				"code":    "0x1234",
 			},
@@ -113,12 +113,12 @@ func setupMockCLGenesis(t *testing.T, tmpDir string) string {
 	require.NoError(t, os.MkdirAll(configDir, 0o755))
 	mockCLGenesisPath := filepath.Join(configDir, "genesis.json")
 
-	mockCLGenesis := map[string]interface{}{
-		"app_state": map[string]interface{}{
-			"beacon": map[string]interface{}{
-				"deposits": []interface{}{
-					map[string]interface{}{
-						"data": map[string]interface{}{
+	mockCLGenesis := map[string]any{
+		"app_state": map[string]any{
+			"beacon": map[string]any{
+				"deposits": []any{
+					map[string]any{
+						"data": map[string]any{
 							"amount":               "32000000000",
 							"pubkey":               "0x1234",
 							"withdrawal_address":   "0x5678",
@@ -147,16 +147,16 @@ func verifyStorageOutput(t *testing.T, genesisPath string) {
 	outputBz, err := afero.ReadFile(afero.NewOsFs(), genesisPath)
 	require.NoError(t, err)
 
-	var output map[string]interface{}
+	var output map[string]any
 	err = json.Unmarshal(outputBz, &output)
 	require.NoError(t, err)
 
 	// Check that the deposit contract storage was set correctly
-	alloc, ok := output["alloc"].(map[string]interface{})
+	alloc, ok := output["alloc"].(map[string]any)
 	require.True(t, ok)
-	depositContract, ok := alloc[depositAddr.Hex()].(map[string]interface{})
+	depositContract, ok := alloc[depositAddr.Hex()].(map[string]any)
 	require.True(t, ok)
-	storage, ok := depositContract["storage"].(map[string]interface{})
+	storage, ok := depositContract["storage"].(map[string]any)
 	require.True(t, ok)
 
 	// Verify storage slots
diff --git a/cli/commands/server/types/types.go b/cli/commands/server/types/types.go
index de3c379057..dcbf2818e0 100644
--- a/cli/commands/server/types/types.go
+++ b/cli/commands/server/types/types.go
@@ -33,7 +33,7 @@ import (
 type (
 	// AppOptions, usually implemented by Viper, holds the configuration for the application.
 	AppOptions interface {
-		Get(string) interface{}
+		Get(string) any
 	}
 
 	// AppCreator is a function that allows us to lazily initialize an application using various
diff --git a/config/config.go b/config/config.go
index 556b813a7e..0dd062dae5 100644
--- a/config/config.go
+++ b/config/config.go
@@ -45,7 +45,7 @@ const (
 
 // AppOptions is from the SDK, we should look to remove its usage.
 type AppOptions interface {
-	Get(string) interface{}
+	Get(string) any
 }
 
 // DefaultConfig returns the default configuration for a BeaconKit chain.
diff --git a/config/config/toml.go b/config/config/toml.go
index 5974d22245..271bc34575 100644
--- a/config/config/toml.go
+++ b/config/config/toml.go
@@ -70,7 +70,7 @@ func SetConfigTemplate(customTemplate string) error {
 
 // WriteConfigFile renders config using the template and writes it to
 // configFilePath.
-func WriteConfigFile(configFilePath string, config interface{}) error {
+func WriteConfigFile(configFilePath string, config any) error {
 	var buffer bytes.Buffer
 
 	if err := configTemplate.Execute(&buffer, config); err != nil {
diff --git a/config/spec/creator_test.go b/config/spec/creator_test.go
index 3b7f6c5da1..4c21c45d20 100644
--- a/config/spec/creator_test.go
+++ b/config/spec/creator_test.go
@@ -33,10 +33,10 @@ import (
 
 // dummyAppOptions is a simple implementation of the AppOptions interface for testing.
 type dummyAppOptions struct {
-	values map[string]interface{}
+	values map[string]any
 }
 
-func (d dummyAppOptions) Get(key string) interface{} {
+func (d dummyAppOptions) Get(key string) any {
 	return d.values[key]
 }
 
@@ -44,7 +44,7 @@ func TestCreateChainSpec_Devnet(t *testing.T) {
 	t.Parallel()
 
 	// Set the app opts to force the devnet branch.
-	opts := dummyAppOptions{values: map[string]interface{}{
+	opts := dummyAppOptions{values: map[string]any{
 		flags.ChainSpec: "devnet",
 	}}
 	cs, err := spec.Create(opts)
@@ -59,7 +59,7 @@ func TestCreateChainSpec_Testnet(t *testing.T) {
 	t.Parallel()
 
 	// Set the app opts to force the testnet branch.
-	opts := dummyAppOptions{values: map[string]interface{}{
+	opts := dummyAppOptions{values: map[string]any{
 		flags.ChainSpec: "testnet",
 	}}
 	cs, err := spec.Create(opts)
@@ -74,7 +74,7 @@ func TestCreateChainSpec_Mainnet(t *testing.T) {
 	t.Parallel()
 
 	// Set the app opts to force the mainnet branch.
-	opts := dummyAppOptions{values: map[string]interface{}{
+	opts := dummyAppOptions{values: map[string]any{
 		flags.ChainSpec: "mainnet",
 	}}
 	cs, err := spec.Create(opts)
@@ -89,7 +89,7 @@ func TestCreateChainSpec_Default_NoSpecFlag(t *testing.T) {
 	t.Parallel()
 
 	// Provide an empty app opts so that no spec flag is present.
-	opts := dummyAppOptions{values: map[string]interface{}{}}
+	opts := dummyAppOptions{values: map[string]any{}}
 	cs, err := spec.Create(opts)
 	require.NoError(t, err)
 	mainnetSpec, err := spec.MainnetChainSpec()
@@ -101,7 +101,7 @@ func TestCreateChainSpec_File(t *testing.T) {
 	t.Parallel()
 
 	// Provide a non-empty value for the custom spec file of mainnet.
-	opts := dummyAppOptions{values: map[string]interface{}{
+	opts := dummyAppOptions{values: map[string]any{
 		flags.ChainSpec:         "file",
 		flags.ChainSpecFilePath: "../../testing/networks/80094/spec.toml",
 	}}
@@ -180,7 +180,7 @@ consensus-enable-height = 2
 			specFile := filepath.Join(tempDir, tt.name+".toml")
 			require.NoError(t, os.WriteFile(specFile, []byte(tt.specContent), 0600))
 
-			opts := dummyAppOptions{values: map[string]interface{}{
+			opts := dummyAppOptions{values: map[string]any{
 				flags.ChainSpec:         "file",
 				flags.ChainSpecFilePath: specFile,
 			}}
diff --git a/config/viper/parser.go b/config/viper/parser.go
index a2112b547c..d1995d71a8 100644
--- a/config/viper/parser.go
+++ b/config/viper/parser.go
@@ -37,8 +37,8 @@ func NumericToDomainTypeFunc() mapstructure.DecodeHookFunc {
 	return func(
 		f reflect.Type,
 		t reflect.Type,
-		data interface{},
-	) (interface{}, error) {
+		data any,
+	) (any, error) {
 		var dt common.DomainType
 		if t != reflect.TypeOf(dt) {
 			return data, nil
@@ -92,8 +92,8 @@ func stringTo[T any](
 	return func(
 		f reflect.Type,
 		t reflect.Type,
-		data interface{},
-	) (interface{}, error) {
+		data any,
+	) (any, error) {
 		if f.Kind() != reflect.String {
 			return data, nil
 		}
diff --git a/execution/client/ethclient/eth.go b/execution/client/ethclient/eth.go
index 2e945c1f23..c320c0d638 100644
--- a/execution/client/ethclient/eth.go
+++ b/execution/client/ethclient/eth.go
@@ -70,8 +70,8 @@ func (s *Client) SubscribeFilterLogs(
 	return nil, errors.New("not implemented")
 }
 
-func toFilterArg(q ethereum.FilterQuery) (interface{}, error) {
-	arg := map[string]interface{}{
+func toFilterArg(q ethereum.FilterQuery) (any, error) {
+	arg := map[string]any{
 		"address": q.Addresses,
 		"topics":  q.Topics,
 	}
diff --git a/node-api/middleware/request.go b/node-api/middleware/request.go
index 59cedc1a6a..fda2b75fd7 100644
--- a/node-api/middleware/request.go
+++ b/node-api/middleware/request.go
@@ -45,7 +45,7 @@ type CustomValidator struct {
 }
 
 // Validate validates the given interface.
-func (cv *CustomValidator) Validate(i interface{}) error {
+func (cv *CustomValidator) Validate(i any) error {
 	if err := cv.Validator.Struct(i); err != nil {
 		var validationErrors validator.ValidationErrors
 		hasValidationErrors := errors.As(err, &validationErrors)
diff --git a/node-core/services/registry/registry.go b/node-core/services/registry/registry.go
index a724b2d127..219f95b133 100644
--- a/node-core/services/registry/registry.go
+++ b/node-core/services/registry/registry.go
@@ -132,7 +132,7 @@ func (s *Registry) RegisterService(service Basic) error {
 // to a service currently stored in the service registry. This ensures the
 // input argument is set to the right pointer that refers to the originally
 // registered service.
-func (s *Registry) FetchService(service interface{}) error {
+func (s *Registry) FetchService(service any) error {
 	serviceType := reflect.TypeOf(service)
 	if serviceType.Kind() != reflect.Ptr ||
 		serviceType.Elem().Kind() != reflect.Ptr {
diff --git a/primitives/crypto/sha256/sha256.go b/primitives/crypto/sha256/sha256.go
index 21bdaa4c85..99cc234fe0 100644
--- a/primitives/crypto/sha256/sha256.go
+++ b/primitives/crypto/sha256/sha256.go
@@ -30,7 +30,7 @@ import (
 // sha256Pool is a pool of sha256 hash functions.
 //
 //nolint:gochecknoglobals // needed for pool.
-var sha256Pool = sync.Pool{New: func() interface{} {
+var sha256Pool = sync.Pool{New: func() any {
 	return sha256.New()
 }}
 
diff --git a/state-transition/core/state_processor_withdrawals.go b/state-transition/core/state_processor_withdrawals.go
index 1420f7ad3b..de3fdf6aee 100644
--- a/state-transition/core/state_processor_withdrawals.go
+++ b/state-transition/core/state_processor_withdrawals.go
@@ -337,8 +337,8 @@ func verifyWithdrawalConditions(st *state.StateDB, validator *ctypes.Validator)
 
 // withdrawalFields returns the structured fields for logging any WithdrawalRequest.
 // error is optional
-func withdrawalFields(req *ctypes.WithdrawalRequest, err error) []interface{} {
-	logFields := []interface{}{
+func withdrawalFields(req *ctypes.WithdrawalRequest, err error) []any {
+	logFields := []any{
 		"source_address", req.SourceAddress.String(),
 		"validator_pubkey", req.ValidatorPubKey.String(),
 		"amount", req.Amount,
diff --git a/testing/e2e/e2e_comet_api_test.go b/testing/e2e/e2e_comet_api_test.go
index d0fbbdc2c5..fd01bd2cdc 100644
--- a/testing/e2e/e2e_comet_api_test.go
+++ b/testing/e2e/e2e_comet_api_test.go
@@ -74,7 +74,7 @@ func (s *BeaconKitE2ESuite) TestABCIInfo() {
 	wg.Wait()
 
 	// Check for errors.
-	errorsMap.Range(func(key, value interface{}) bool {
+	errorsMap.Range(func(key, value any) bool {
 		name := key.(string) //nolint:errcheck // Safe to ignore.
 		err := value.(error) //nolint:errcheck // Safe to ignore.
 		s.Require().NoError(err, "Error getting ABCI info from node %s", name)
@@ -83,7 +83,7 @@ func (s *BeaconKitE2ESuite) TestABCIInfo() {
 
 	// Collect heights into a map for comparison.
 	heights := make(map[string]int64)
-	heightsMap.Range(func(key, value interface{}) bool {
+	heightsMap.Range(func(key, value any) bool {
 		name := key.(string)    //nolint:errcheck // Safe to ignore.
 		height := value.(int64) //nolint:errcheck // Safe to ignore.
 		heights[name] = height
diff --git a/testing/e2e/suite/types/service_context.go b/testing/e2e/suite/types/service_context.go
index ac138132a7..f5b48467db 100644
--- a/testing/e2e/suite/types/service_context.go
+++ b/testing/e2e/suite/types/service_context.go
@@ -75,7 +75,7 @@ func (s *WrappedServiceContext) Start(
 	ctx context.Context,
 	enclaveContext *enclaves.EnclaveContext,
 ) (*enclaves.StarlarkRunResult, error) {
-	res, err := s.RunHelper(ctx, "start_service", map[string]interface{}{
+	res, err := s.RunHelper(ctx, "start_service", map[string]any{
 		"service_name": s.GetServiceName(),
 	})
 	if err != nil {
@@ -97,7 +97,7 @@ func (s *WrappedServiceContext) Start(
 func (s *WrappedServiceContext) Stop(
 	ctx context.Context,
 ) (*enclaves.StarlarkRunResult, error) {
-	return s.RunHelper(ctx, "stop_service", map[string]interface{}{
+	return s.RunHelper(ctx, "stop_service", map[string]any{
 		"service_name": s.GetServiceName(),
 	})
 }
@@ -105,7 +105,7 @@ func (s *WrappedServiceContext) Stop(
 func (s *WrappedServiceContext) RunHelper(
 	ctx context.Context,
 	mainFunctionName string,
-	args map[string]interface{},
+	args map[string]any,
 ) (*enclaves.StarlarkRunResult, error) {
 	jsonBytes, err := json.Marshal(args)
 	if err != nil {