diff --git a/Cargo.lock b/Cargo.lock
index ee34c84c0c..b4e2b020a8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -547,6 +547,12 @@ version = "0.21.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
 
+[[package]]
+name = "base64"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9475866fec1451be56a3c2400fd081ff546538961565ccb5b7142cbd22bc7a51"
+
 [[package]]
 name = "base64ct"
 version = "1.6.0"
@@ -706,9 +712,9 @@ dependencies = [
 
 [[package]]
 name = "bs58"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f5353f36341f7451062466f0b755b96ac3a9547e4d7f6b70d603fc721a7d7896"
+checksum = "bf88ba1141d185c399bee5288d850d63b8369520c1eafc32a0430b5b6c287bf4"
 dependencies = [
  "tinyvec",
 ]
@@ -1712,9 +1718,9 @@ checksum = "a44623e20b9681a318efdd71c299b6b222ed6f231972bfe2f224ebad6311f0c1"
 
 [[package]]
 name = "futures-lite"
-version = "2.2.0"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "445ba825b27408685aaecefd65178908c36c6e96aaf6d8599419d46e624192ba"
+checksum = "52527eb5074e35e9339c6b4e8d12600c7128b68fb25dcb9fa9dec18f7c25f3a5"
 dependencies = [
  "fastrand",
  "futures-core",
@@ -2362,7 +2368,7 @@ dependencies = [
  "pin-project",
  "rustls-native-certs 0.7.0",
  "rustls-pki-types",
- "soketto",
+ "soketto 0.7.1",
  "thiserror",
  "tokio",
  "tokio-rustls 0.25.0",
@@ -2561,9 +2567,9 @@ checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
 [[package]]
 name = "lru"
-version = "0.12.2"
+version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db2c024b41519440580066ba82aab04092b333e09066a5eb86c7c4890df31f22"
+checksum = "d3262e75e648fce39813cb56ac41f3c3e3f65217ebf3844d818d1f9398cfb0dc"
 dependencies = [
  "hashbrown 0.14.3",
 ]
@@ -2714,9 +2720,9 @@ dependencies = [
 
 [[package]]
 name = "num-derive"
-version = "0.4.1"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cfb77679af88f8b125209d354a202862602672222e7f2313fdd6dc349bad4712"
+checksum = "ed3955f1a9c7c0c15e092f9c887db08b1fc683305fdf6eb6684f22555355e202"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3572,13 +3578,12 @@ checksum = "7ffc183a10b4478d04cbbbfc96d0873219d962dd5accaff2ffbd4ceb7df837f4"
 
 [[package]]
 name = "ruzstd"
-version = "0.5.0"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58c4eb8a81997cf040a091d1f7e1938aeab6749d3a0dfa73af43cdc32393483d"
+checksum = "5174a470eeb535a721ae9fdd6e291c2411a906b96592182d05217591d5c5cf7b"
 dependencies = [
  "byteorder",
  "derive_more",
- "twox-hash",
 ]
 
 [[package]]
@@ -3962,6 +3967,17 @@ dependencies = [
  "opaque-debug",
 ]
 
+[[package]]
+name = "sha1"
+version = "0.10.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3bf829a2d51ab4a5ddf1352d8470c140cadc8301b2ae1789db023f01cedd6ba"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest 0.10.7",
+]
+
 [[package]]
 name = "sha2"
 version = "0.9.9"
@@ -4032,9 +4048,9 @@ checksum = "620a1d43d70e142b1d46a929af51d44f383db9c7a2ec122de2cd992ccfcf3c18"
 
 [[package]]
 name = "siphasher"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "54ac45299ccbd390721be55b412d41931911f654fa99e2cb8bfb57184b2061fe"
+checksum = "56199f7ddabf13fe5074ce809e7d3f42b42ae711800501b5b16ea82ad029c39d"
 
 [[package]]
 name = "slab"
@@ -4047,9 +4063,9 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "1.13.1"
+version = "1.13.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6ecd384b10a64542d77071bd64bd7b231f4ed5940fba55e98c3de13824cf3d7"
+checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
 
 [[package]]
 name = "smol"
@@ -4071,13 +4087,11 @@ dependencies = [
 [[package]]
 name = "smoldot"
 version = "0.17.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "65332bfea88002d2b47f33e5f3ccd22a1c94967f8ada0c912be56865a02e5e57"
 dependencies = [
  "arrayvec 0.7.4",
  "async-lock 3.3.0",
  "atomic-take",
- "base64 0.21.7",
+ "base64 0.22.0",
  "bip39",
  "blake2-rfc",
  "bs58",
@@ -4086,7 +4100,7 @@ dependencies = [
  "derive_more",
  "ed25519-zebra 4.0.3",
  "either",
- "event-listener 4.0.3",
+ "event-listener 5.0.0",
  "fnv",
  "futures-lite",
  "futures-util",
@@ -4116,7 +4130,7 @@ dependencies = [
  "siphasher",
  "slab",
  "smallvec",
- "soketto",
+ "soketto 0.8.0",
  "twox-hash",
  "wasmi",
  "x25519-dalek",
@@ -4126,16 +4140,15 @@ dependencies = [
 [[package]]
 name = "smoldot-light"
 version = "0.15.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "416a29c366a0e6d41bf81dc6c1e4851c60834eabea7e65d056c6becfdfd89977"
 dependencies = [
  "async-channel",
  "async-lock 3.3.0",
- "base64 0.21.7",
+ "base64 0.22.0",
  "blake2-rfc",
+ "bs58",
  "derive_more",
  "either",
- "event-listener 4.0.3",
+ "event-listener 5.0.0",
  "fnv",
  "futures-channel",
  "futures-lite",
@@ -4184,6 +4197,21 @@ dependencies = [
  "sha-1",
 ]
 
+[[package]]
+name = "soketto"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37468c595637c10857701c990f93a40ce0e357cedb0953d1c26c8d8027f9bb53"
+dependencies = [
+ "base64 0.22.0",
+ "bytes",
+ "futures",
+ "httparse",
+ "log",
+ "rand",
+ "sha1",
+]
+
 [[package]]
 name = "sp-application-crypto"
 version = "33.0.0"
@@ -5565,10 +5593,11 @@ checksum = "af190c94f2773fdb3729c55b007a722abb5384da03bc0986df4c289bf5567e96"
 
 [[package]]
 name = "wasmi"
-version = "0.32.0-beta.5"
+version = "0.32.0-beta.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b962e531cc387ce15b1da00f06f727f9a9063619e74d1499c3e443d940378b0"
+checksum = "25c72a5f9570c87a59db8f071bbc1338922c9b19a43128d01e1d0c77f65ff2b1"
 dependencies = [
+ "arrayvec 0.7.4",
  "multi-stash",
  "num-derive",
  "num-traits",
@@ -5581,15 +5610,15 @@ dependencies = [
 
 [[package]]
 name = "wasmi_arena"
-version = "0.4.1"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "104a7f73be44570cac297b3035d76b169d6599637631cf37a1703326a0727073"
+checksum = "0f686876d8f92a573a9a1e005b78ec1e893158bbdc3ac75a1270384ca86d6c6b"
 
 [[package]]
 name = "wasmi_core"
-version = "0.15.0"
+version = "0.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ac482df6761020b2b75c9aade41c105993c5b9f64156c349bb7ccad226a6ecd"
+checksum = "06223fd279f83ff4739554b9df82d9632bf5922acb7fc505990a0406837b5474"
 dependencies = [
  "downcast-rs",
  "libm",
diff --git a/Cargo.toml b/Cargo.toml
index 001732e41e..fb5fcd2a8d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,7 +33,7 @@ resolver = "2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2021"
 version = "0.35.0"
-rust-version = "1.74.0"
+rust-version = "1.77.0"
 license = "Apache-2.0 OR GPL-3.0"
 repository = "https://github.com/paritytech/subxt"
 documentation = "https://docs.rs/subxt"
@@ -112,8 +112,12 @@ which = "5.0.0"
 strip-ansi-escapes = "0.2.0"
 
 # Light client support:
-smoldot = { version = "0.17.0", default-features = false }
-smoldot-light = { version = "0.15.0", default-features = false }
+smoldot = { path = "/home/lexnv/workspace/smoldot/lib", default-features = false }
+#smoldot = { version = "0.17.0", default-features = false }
+
+#smoldot-light = { version = "0.15.0", default-features = false }
+smoldot-light = { path = "/home/lexnv/workspace/smoldot/light-base", default-features = false }
+
 tokio-stream = "0.1.14"
 futures-util = "0.3.30"
 rand = "0.8.5"
diff --git a/testing/integration-tests/src/light_client/mod.rs b/testing/integration-tests/src/light_client/mod.rs
index 523e9d00ea..2c9bb14748 100644
--- a/testing/integration-tests/src/light_client/mod.rs
+++ b/testing/integration-tests/src/light_client/mod.rs
@@ -166,10 +166,29 @@ async fn light_client_testing() -> Result<(), subxt::Error> {
     tracing_subscriber::fmt::init();
     let now = std::time::Instant::now();
 
+    println!("Init lightclient");
+    // let chainspec = subxt::utils::fetch_chainspec_from_rpc_node("wss://rpc.polkadot.io:443")
+
+    // let chainspec = subxt::utils::fetch_chainspec_from_rpc_node("ws://127.0.0.1:9944")
+    //     .await
+    //     .unwrap();
+    // println!("Fetch spec took {:?}\n", now.elapsed());
+    // let bootnode = format!(
+    //     "/ip4/127.0.0.1/tcp/30333/p2p/12D3KooWHdiAxVd8uMQR1hGWXccidmfCwLqcMpGwR6QcTP6QRMuD",
+    // );
+    // let chain_config = subxt::lightclient::ChainConfig::chain_spec(chainspec.get())
+    //     .set_bootnodes([bootnode.as_str()])
+    //     .map_err(|e| format!("Light client: cannot update boot nodes: {e}"))?;
+
     let chainspec = subxt::utils::fetch_chainspec_from_rpc_node("wss://rpc.polkadot.io:443")
         .await
         .unwrap();
-    let (_lc, rpc) = LightClient::relay_chain(chainspec.get())?;
+
+    println!("Chain Spec: {:?}", chainspec);
+
+    let chain_config = chainspec.get();
+
+    let (_lc, rpc) = LightClient::relay_chain(chain_config)?;
     let api = Client::from_rpc_client(rpc).await?;
 
     println!("Light client initialization took {:?}\n", now.elapsed());