diff --git a/assets/chains.json b/assets/chains.json
index 940df53..e96d290 100644
--- a/assets/chains.json
+++ b/assets/chains.json
@@ -1044,6 +1044,18 @@
       "etherscanBaseUrl": "https://explorer.goerli.linea.build",
       "etherscanApiKeyName": null
     },
+    "59141": {
+      "internalId": "LineaSepolia",
+      "name": "linea-sepolia",
+      "averageBlocktimeHint": null,
+      "isLegacy": false,
+      "supportsShanghai": false,
+      "isTestnet": true,
+      "nativeCurrencySymbol": null,
+      "etherscanApiUrl": "https://api-sepolia.lineascan.build/api",
+      "etherscanBaseUrl": "https://sepolia.lineascan.build",
+      "etherscanApiKeyName": "ETHERSCAN_API_KEY"
+    },
     "59144": {
       "internalId": "Linea",
       "name": "linea",
diff --git a/src/chain.rs b/src/chain.rs
index 2edfa33..031f5a6 100644
--- a/src/chain.rs
+++ b/src/chain.rs
@@ -354,6 +354,12 @@ impl Chain {
         Self::from_named(NamedChain::LineaGoerli)
     }
 
+    /// Returns the linea sepolia chain.
+    #[inline]
+    pub const fn linea_sepolia() -> Self {
+        Self::from_named(NamedChain::LineaSepolia)
+    }
+
     /// Returns the mode mainnet chain.
     #[inline]
     pub const fn mode() -> Self {
diff --git a/src/named.rs b/src/named.rs
index 605bb11..aac5d66 100644
--- a/src/named.rs
+++ b/src/named.rs
@@ -239,6 +239,8 @@ pub enum NamedChain {
     Linea = 59144,
     #[cfg_attr(feature = "serde", serde(alias = "linea-goerli"))]
     LineaGoerli = 59140,
+    #[cfg_attr(feature = "serde", serde(alias = "linea-sepolia"))]
+    LineaSepolia = 59141,
 
     #[strum(to_string = "zksync")]
     #[cfg_attr(feature = "serde", serde(alias = "zksync"))]
@@ -612,7 +614,7 @@ impl NamedChain {
             Morden | Ropsten | Rinkeby | Goerli | Kovan | Sepolia | Holesky | MantleTestnet
             | Moonbase | MoonbeamDev | OptimismKovan | Poa | Sokol | Rsk | EmeraldTestnet
             | Boba | ZkSync | ZkSyncTestnet | PolygonZkEvm | PolygonZkEvmTestnet | Metis
-            | Linea | LineaGoerli | KakarotSepolia => return None,
+            | Linea | LineaGoerli | LineaSepolia | KakarotSepolia => return None,
         }))
     }
 
@@ -695,6 +697,7 @@ impl NamedChain {
             | FilecoinMainnet
             | Linea
             | LineaGoerli
+            | LineaSepolia
             | FilecoinCalibrationTestnet
             | Gnosis
             | Chiado
@@ -847,6 +850,7 @@ impl NamedChain {
             | FilecoinCalibrationTestnet
             | FraxtalTestnet
             | LineaGoerli
+            | LineaSepolia
             | MantleTestnet
             | MantleSepolia
             | MoonbeamDev
@@ -1141,6 +1145,9 @@ impl NamedChain {
             LineaGoerli => {
                 ("https://explorer.goerli.linea.build/api", "https://explorer.goerli.linea.build")
             }
+            LineaSepolia => {
+                ("https://api-sepolia.lineascan.build/api", "https://sepolia.lineascan.build")
+            }
 
             Mantle => ("https://explorer.mantle.xyz/api", "https://explorer.mantle.xyz"),
             MantleTestnet => {
@@ -1292,6 +1299,7 @@ impl NamedChain {
             | CeloBaklava
             | Base
             | Linea
+            | LineaSepolia
             | Mantle
             | MantleTestnet
             | MantleSepolia
@@ -1523,6 +1531,7 @@ mod tests {
             (Syndr, &["syndr"]),
             (SyndrSepolia, &["syndr-sepolia"]),
             (LineaGoerli, &["linea-goerli"]),
+            (LineaSepolia, &["linea-sepolia"]),
             (AutonomysNovaTestnet, &["autonomys-nova-testnet"]),
             (Immutable, &["immutable"]),
             (ImmutableTestnet, &["immutable-testnet"]),