diff --git a/src/configs/goerli.rs b/src/configs/goerli.rs
new file mode 100644
index 000000000..2e5ff249d
--- /dev/null
+++ b/src/configs/goerli.rs
@@ -0,0 +1,80 @@
+use crate::configs::Config;
+use crate::primitives::{Epoch, ExecutionAddress, Gwei, Version, FAR_FUTURE_EPOCH, U256};
+
+pub const MIN_GENESIS_ACTIVE_VALIDATOR_COUNT: usize = 16384;
+pub const MIN_GENESIS_TIME: u64 = 1614588812;
+pub const GENESIS_FORK_VERSION: Version = [0, 0, 16, 32];
+pub const GENESIS_DELAY: u64 = 1919188;
+pub const SECONDS_PER_SLOT: u64 = 12;
+pub const SECONDS_PER_ETH1_BLOCK: u64 = 14;
+pub const MIN_VALIDATOR_WITHDRAWABILITY_DELAY: Epoch = 256;
+pub const SHARD_COMMITTEE_PERIOD: Epoch = 256;
+pub const ETH1_FOLLOW_DISTANCE: u64 = 2048;
+pub const EJECTION_BALANCE: Gwei = 16 * 10u64.pow(9);
+pub const MIN_PER_EPOCH_CHURN_LIMIT: u64 = 4;
+pub const CHURN_LIMIT_QUOTIENT: u64 = 65536;
+pub const TERMINAL_BLOCK_HASH_ACTIVATION_EPOCH: Epoch = FAR_FUTURE_EPOCH;
+pub const ALTAIR_FORK_VERSION: Version = [1, 0, 16, 32];
+pub const ALTAIR_FORK_EPOCH: Epoch = 36660;
+pub const BELLATRIX_FORK_VERSION: Version = [2, 0, 16, 32];
+pub const BELLATRIX_FORK_EPOCH: Epoch = 112260;
+pub const CAPELLA_FORK_VERSION: Version = [3, 0, 16, 32];
+pub const CAPELLA_FORK_EPOCH: Epoch = FAR_FUTURE_EPOCH;
+pub const SHARDING_FORK_VERSION: Version = [4, 0, 16, 32];
+pub const SHARDING_FORK_EPOCH: Epoch = FAR_FUTURE_EPOCH;
+pub const INACTIVITY_SCORE_BIAS: u64 = 4;
+pub const INACTIVITY_SCORE_RECOVERY_RATE: u64 = 16;
+pub const PROPOSER_SCORE_BOOST: u64 = 40;
+pub const DEPOSIT_CHAIN_ID: usize = 5;
+pub const DEPOSIT_NETWORK_ID: usize = 5;
+
+pub fn config() -> Config {
+    // 10790000
+    let terminal_total_difficulty = U256::from_bytes_le([
+        112, 164, 164, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0,
+    ]);
+    let terminal_block_hash = Default::default();
+    let deposit_contract_address = ExecutionAddress::try_from(
+        [
+            // 0xff50ed3d0ec03aC01D4C79aAd74928BFF48a7b2b
+            255, 80, 237, 61, 14, 192, 58, 192, 29, 76, 121, 170, 215, 73, 40, 191, 244, 138, 123,
+            43,
+        ]
+        .as_ref(),
+    )
+    .unwrap();
+
+    Config {
+        name: "goerli",
+        terminal_total_difficulty,
+        terminal_block_hash,
+        terminal_block_hash_activation_epoch: TERMINAL_BLOCK_HASH_ACTIVATION_EPOCH,
+        min_genesis_active_validator_count: MIN_GENESIS_ACTIVE_VALIDATOR_COUNT,
+        min_genesis_time: MIN_GENESIS_TIME,
+        genesis_fork_version: GENESIS_FORK_VERSION,
+        genesis_delay: GENESIS_DELAY,
+        altair_fork_version: ALTAIR_FORK_VERSION,
+        altair_fork_epoch: ALTAIR_FORK_EPOCH,
+        bellatrix_fork_version: BELLATRIX_FORK_VERSION,
+        bellatrix_fork_epoch: BELLATRIX_FORK_EPOCH,
+        capella_fork_version: CAPELLA_FORK_VERSION,
+        capella_fork_epoch: CAPELLA_FORK_EPOCH,
+        sharding_fork_version: SHARDING_FORK_VERSION,
+        sharding_fork_epoch: SHARDING_FORK_EPOCH,
+        seconds_per_slot: SECONDS_PER_SLOT,
+        seconds_per_eth1_block: SECONDS_PER_ETH1_BLOCK,
+        min_validator_withdrawability_delay: MIN_VALIDATOR_WITHDRAWABILITY_DELAY,
+        shard_committee_period: SHARD_COMMITTEE_PERIOD,
+        eth1_follow_distance: ETH1_FOLLOW_DISTANCE,
+        inactivity_score_bias: INACTIVITY_SCORE_BIAS,
+        inactivity_score_recovery_rate: INACTIVITY_SCORE_RECOVERY_RATE,
+        ejection_balance: EJECTION_BALANCE,
+        min_per_epoch_churn_limit: MIN_PER_EPOCH_CHURN_LIMIT,
+        churn_limit_quotient: CHURN_LIMIT_QUOTIENT,
+        proposer_score_boost: PROPOSER_SCORE_BOOST,
+        deposit_chain_id: DEPOSIT_CHAIN_ID,
+        deposit_network_id: DEPOSIT_NETWORK_ID,
+        deposit_contract_address,
+    }
+}
diff --git a/src/configs/mainnet.rs b/src/configs/mainnet.rs
index e4e35658c..c1f1b2863 100644
--- a/src/configs/mainnet.rs
+++ b/src/configs/mainnet.rs
@@ -24,7 +24,7 @@ pub const SHARDING_FORK_VERSION: Version = [4, 0, 0, 0];
 pub const SHARDING_FORK_EPOCH: Epoch = FAR_FUTURE_EPOCH;
 pub const INACTIVITY_SCORE_BIAS: u64 = 4;
 pub const INACTIVITY_SCORE_RECOVERY_RATE: u64 = 16;
-pub const PROPOSER_SCORE_BOOST: u64 = 70;
+pub const PROPOSER_SCORE_BOOST: u64 = 40;
 pub const DEPOSIT_CHAIN_ID: usize = 1;
 pub const DEPOSIT_NETWORK_ID: usize = 1;
 
diff --git a/src/configs/mod.rs b/src/configs/mod.rs
index 63c642c8f..2fe8303e7 100644
--- a/src/configs/mod.rs
+++ b/src/configs/mod.rs
@@ -1,5 +1,7 @@
+pub mod goerli;
 pub mod mainnet;
 pub mod minimal;
+pub mod sepolia;
 
 use crate::primitives::{Epoch, ExecutionAddress, Gwei, Hash32, Version, U256};
 
diff --git a/src/configs/sepolia.rs b/src/configs/sepolia.rs
new file mode 100644
index 000000000..1e913af14
--- /dev/null
+++ b/src/configs/sepolia.rs
@@ -0,0 +1,81 @@
+use crate::configs::Config;
+use crate::primitives::{Epoch, ExecutionAddress, Gwei, Version, FAR_FUTURE_EPOCH, U256};
+
+pub const MIN_GENESIS_ACTIVE_VALIDATOR_COUNT: usize = 1300;
+pub const MIN_GENESIS_TIME: u64 = 1655647200;
+pub const GENESIS_FORK_VERSION: Version = [144, 0, 0, 105];
+pub const GENESIS_DELAY: u64 = 86400;
+pub const SECONDS_PER_SLOT: u64 = 12;
+pub const SECONDS_PER_ETH1_BLOCK: u64 = 14;
+pub const MIN_VALIDATOR_WITHDRAWABILITY_DELAY: Epoch = 256;
+pub const SHARD_COMMITTEE_PERIOD: Epoch = 256;
+pub const ETH1_FOLLOW_DISTANCE: u64 = 2048;
+pub const EJECTION_BALANCE: Gwei = 16 * 10u64.pow(9);
+pub const MIN_PER_EPOCH_CHURN_LIMIT: u64 = 4;
+pub const CHURN_LIMIT_QUOTIENT: u64 = 65536;
+pub const TERMINAL_BLOCK_HASH_ACTIVATION_EPOCH: Epoch = FAR_FUTURE_EPOCH;
+pub const ALTAIR_FORK_VERSION: Version = [144, 0, 0, 112];
+pub const ALTAIR_FORK_EPOCH: Epoch = 50;
+pub const BELLATRIX_FORK_VERSION: Version = [144, 0, 0, 113];
+pub const BELLATRIX_FORK_EPOCH: Epoch = 100;
+pub const CAPELLA_FORK_VERSION: Version = [3, 0, 16, 32];
+pub const CAPELLA_FORK_EPOCH: Epoch = FAR_FUTURE_EPOCH;
+pub const SHARDING_FORK_VERSION: Version = [4, 0, 16, 32];
+pub const SHARDING_FORK_EPOCH: Epoch = FAR_FUTURE_EPOCH;
+pub const INACTIVITY_SCORE_BIAS: u64 = 4;
+pub const INACTIVITY_SCORE_RECOVERY_RATE: u64 = 16;
+pub const PROPOSER_SCORE_BOOST: u64 = 40;
+pub const DEPOSIT_CHAIN_ID: usize = 11155111;
+pub const DEPOSIT_NETWORK_ID: usize = 11155111;
+
+pub fn config() -> Config {
+    // 17000000000000000
+    let terminal_total_difficulty = U256::from_bytes_le([
+        0, 128, 46, 241, 104, 101, 60, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0,
+    ]);
+    let terminal_block_hash = Default::default();
+    let deposit_contract_address =
+        ExecutionAddress::try_from(
+            [
+                // 0x7f02C3E3c98b133055B8B348B2Ac625669Ed295D
+                127, 2, 195, 227, 201, 139, 19, 48, 85, 184, 179, 72, 178, 172, 98, 86, 105, 237,
+                41, 93,
+            ]
+            .as_ref(),
+        )
+        .unwrap();
+
+    Config {
+        name: "sepolia",
+        terminal_total_difficulty,
+        terminal_block_hash,
+        terminal_block_hash_activation_epoch: TERMINAL_BLOCK_HASH_ACTIVATION_EPOCH,
+        min_genesis_active_validator_count: MIN_GENESIS_ACTIVE_VALIDATOR_COUNT,
+        min_genesis_time: MIN_GENESIS_TIME,
+        genesis_fork_version: GENESIS_FORK_VERSION,
+        genesis_delay: GENESIS_DELAY,
+        altair_fork_version: ALTAIR_FORK_VERSION,
+        altair_fork_epoch: ALTAIR_FORK_EPOCH,
+        bellatrix_fork_version: BELLATRIX_FORK_VERSION,
+        bellatrix_fork_epoch: BELLATRIX_FORK_EPOCH,
+        capella_fork_version: CAPELLA_FORK_VERSION,
+        capella_fork_epoch: CAPELLA_FORK_EPOCH,
+        sharding_fork_version: SHARDING_FORK_VERSION,
+        sharding_fork_epoch: SHARDING_FORK_EPOCH,
+        seconds_per_slot: SECONDS_PER_SLOT,
+        seconds_per_eth1_block: SECONDS_PER_ETH1_BLOCK,
+        min_validator_withdrawability_delay: MIN_VALIDATOR_WITHDRAWABILITY_DELAY,
+        shard_committee_period: SHARD_COMMITTEE_PERIOD,
+        eth1_follow_distance: ETH1_FOLLOW_DISTANCE,
+        inactivity_score_bias: INACTIVITY_SCORE_BIAS,
+        inactivity_score_recovery_rate: INACTIVITY_SCORE_RECOVERY_RATE,
+        ejection_balance: EJECTION_BALANCE,
+        min_per_epoch_churn_limit: MIN_PER_EPOCH_CHURN_LIMIT,
+        churn_limit_quotient: CHURN_LIMIT_QUOTIENT,
+        proposer_score_boost: PROPOSER_SCORE_BOOST,
+        deposit_chain_id: DEPOSIT_CHAIN_ID,
+        deposit_network_id: DEPOSIT_NETWORK_ID,
+        deposit_contract_address,
+    }
+}
diff --git a/src/state_transition/context.rs b/src/state_transition/context.rs
index f61a2f110..6310c82dc 100644
--- a/src/state_transition/context.rs
+++ b/src/state_transition/context.rs
@@ -217,4 +217,20 @@ impl Context {
         let bellatrix_preset = &bellatrix::minimal::PRESET;
         Self::from(phase0_preset, altair_preset, bellatrix_preset, config)
     }
+
+    pub fn for_goerli() -> Self {
+        let config = &configs::goerli::config();
+        let phase0_preset = &phase0::mainnet::PRESET;
+        let altair_preset = &altair::mainnet::PRESET;
+        let bellatrix_preset = &bellatrix::mainnet::PRESET;
+        Self::from(phase0_preset, altair_preset, bellatrix_preset, config)
+    }
+
+    pub fn for_sepolia() -> Self {
+        let config = &configs::sepolia::config();
+        let phase0_preset = &phase0::mainnet::PRESET;
+        let altair_preset = &altair::mainnet::PRESET;
+        let bellatrix_preset = &bellatrix::mainnet::PRESET;
+        Self::from(phase0_preset, altair_preset, bellatrix_preset, config)
+    }
 }