diff --git a/eth/ethconfig/gen_config.go b/eth/ethconfig/gen_config.go
index 27a322ab6d..97c5db3ecd 100644
--- a/eth/ethconfig/gen_config.go
+++ b/eth/ethconfig/gen_config.go
@@ -15,7 +15,7 @@ import (
 )
 
 // MarshalTOML marshals as TOML.
-func (c Config) MarshalTOML() (any, error) {
+func (c Config) MarshalTOML() (interface{}, error) {
 	type Config struct {
 		Genesis                 *core.Genesis `toml:",omitempty"`
 		NetworkId               uint64
@@ -119,7 +119,7 @@ func (c Config) MarshalTOML() (any, error) {
 }
 
 // UnmarshalTOML unmarshals from TOML.
-func (c *Config) UnmarshalTOML(unmarshal func(any) error) error {
+func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
 	type Config struct {
 		Genesis                 *core.Genesis `toml:",omitempty"`
 		NetworkId               *uint64
diff --git a/p2p/config_toml.go b/p2p/config_toml.go
index a19d174d24..8a255e62fb 100644
--- a/p2p/config_toml.go
+++ b/p2p/config_toml.go
@@ -14,7 +14,7 @@ import (
 var _ = (*configMarshaling)(nil)
 
 // MarshalTOML marshals as TOML.
-func (c Config) MarshalTOML() (any, error) {
+func (c Config) MarshalTOML() (interface{}, error) {
 	type Config struct {
 		PrivateKey       *ecdsa.PrivateKey `toml:"-"`
 		MaxPeers         int
@@ -66,7 +66,7 @@ func (c Config) MarshalTOML() (any, error) {
 }
 
 // UnmarshalTOML unmarshals from TOML.
-func (c *Config) UnmarshalTOML(unmarshal func(any) error) error {
+func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
 	type Config struct {
 		PrivateKey       *ecdsa.PrivateKey `toml:"-"`
 		MaxPeers         *int