diff --git a/epicleague/settings.js b/epicleague/settings.js
index 05f2dca..b18306a 100644
--- a/epicleague/settings.js
+++ b/epicleague/settings.js
@@ -59,6 +59,7 @@ module.exports = {
         Eth: {
             rpc: ["https://ethereum-mainnet-rpc.allthatnode.com", "https://mainnet.infura.io/v3/[PROJECT_ID]", "https://rpc.ankr.com/eth", "https://eth.chain-node.orbitchain.io:7643", ],
             socket: "wss://mainnet.infura.io/ws/v3/[PROJECT_ID]",
+            beacon: "https://beacon.chain-node.orbitchain.io:7643",
         },
         Matic: {
             rpc: ["https://polygon-mainnet-rpc.allthatnode.com:8545", "https://polygon-rpc.com", "https://matic.chain-node.orbitchain.io:7643",],
@@ -70,6 +71,8 @@ module.exports = {
     ETH_CHAIN_ID: '0x1',
     MATIC_CHAIN_ID: '0x89',
 
+    ETH_TERMINAL_TOTAL_DIFFICULTY: "58750000000000000000000",
+
     DEBUG: true,
     LOGLEVEL: 'debug',
 
diff --git a/eth/settings.js b/eth/settings.js
index 3a4eba7..6c4f042 100644
--- a/eth/settings.js
+++ b/eth/settings.js
@@ -135,6 +135,7 @@ module.exports = {
         Eth: {
             rpc: ["https://eth.chain-node.orbitchain.io:7643", "https://mainnet.infura.io/v3/[PROJECT_ID]"],
             socket: "wss://mainnet.infura.io/ws/v3/[PROJECT_ID]",
+            beacon: "https://beacon.chain-node.orbitchain.io:7643",
         },
         Fantom: {
             rpc: "https://rpc.ftm.tools",
@@ -197,6 +198,8 @@ module.exports = {
     MATIC_CHAIN_ID: '0x89',
     OEC_CHAIN_ID: 66,
 
+    ETH_TERMINAL_TOTAL_DIFFICULTY: "58750000000000000000000",
+
     DEBUG: true,
     LOGLEVEL: 'debug',
 
diff --git a/klaytnvault/settings.js b/klaytnvault/settings.js
index 56f48a2..b5a23c0 100644
--- a/klaytnvault/settings.js
+++ b/klaytnvault/settings.js
@@ -129,6 +129,7 @@ module.exports = {
         Eth: {
             rpc: ["https://eth.chain-node.orbitchain.io:7643", "https://mainnet.infura.io/v3/[PROJECT_ID]"],
             socket: "wss://mainnet.infura.io/ws/v3/[PROJECT_ID]",
+            beacon: "https://beacon.chain-node.orbitchain.io:7643",
         },
         Fantom: {
             rpc: "https://rpc.ftm.tools",
@@ -184,6 +185,8 @@ module.exports = {
     MATIC_CHAIN_ID: '0x89',
     OEC_CHAIN_ID: 66,
 
+    ETH_TERMINAL_TOTAL_DIFFICULTY: "58750000000000000000000",
+
     DEBUG: true,
     LOGLEVEL: 'debug',
 
diff --git a/polygon/settings.js b/polygon/settings.js
index f79a412..9d34071 100644
--- a/polygon/settings.js
+++ b/polygon/settings.js
@@ -129,6 +129,7 @@ module.exports = {
         Eth: {
             rpc: ["https://eth.chain-node.orbitchain.io:7643", "https://mainnet.infura.io/v3/[PROJECT_ID]"],
             socket: "wss://mainnet.infura.io/ws/v3/[PROJECT_ID]",
+            beacon: "https://beacon.chain-node.orbitchain.io:7643",
         },
         Fantom: {
             rpc: "https://rpc.ftm.tools",
@@ -184,6 +185,8 @@ module.exports = {
     MATIC_CHAIN_ID: '0x89',
     OEC_CHAIN_ID: 66,
 
+    ETH_TERMINAL_TOTAL_DIFFICULTY: "58750000000000000000000",
+
     DEBUG: true,
     LOGLEVEL: 'debug',