diff --git a/cli/Cargo.lock b/cli/Cargo.lock
index e8bdff8..34bbfe8 100644
--- a/cli/Cargo.lock
+++ b/cli/Cargo.lock
@@ -707,7 +707,7 @@ dependencies = [
 [[package]]
 name = "boltz-client"
 version = "0.2.0"
-source = "git+https://github.com/danielgranhao/boltz-rust?rev=e3e87186604c818c667b1293149423af5757dfbe#e3e87186604c818c667b1293149423af5757dfbe"
+source = "git+https://github.com/hydra-yse/boltz-rust?rev=5c2a7aebd1669d599d76e782952b876a901bfb05#5c2a7aebd1669d599d76e782952b876a901bfb05"
 dependencies = [
  "bip39",
  "bitcoin 0.32.5",
diff --git a/lib/Cargo.lock b/lib/Cargo.lock
index 6077b54..b21f847 100644
--- a/lib/Cargo.lock
+++ b/lib/Cargo.lock
@@ -802,7 +802,7 @@ dependencies = [
 [[package]]
 name = "boltz-client"
 version = "0.2.0"
-source = "git+https://github.com/danielgranhao/boltz-rust?rev=e3e87186604c818c667b1293149423af5757dfbe#e3e87186604c818c667b1293149423af5757dfbe"
+source = "git+https://github.com/hydra-yse/boltz-rust?rev=5c2a7aebd1669d599d76e782952b876a901bfb05#5c2a7aebd1669d599d76e782952b876a901bfb05"
 dependencies = [
  "bip39",
  "bitcoin 0.32.4",
diff --git a/lib/core/Cargo.toml b/lib/core/Cargo.toml
index bb37b13..47b6a70 100644
--- a/lib/core/Cargo.toml
+++ b/lib/core/Cargo.toml
@@ -17,7 +17,7 @@ workspace = true
 [dependencies]
 anyhow = { workspace = true }
 bip39 = "2.0.0"
-boltz-client = { git = "https://github.com/danielgranhao/boltz-rust", rev = "e3e87186604c818c667b1293149423af5757dfbe" }
+boltz-client = { git = "https://github.com/hydra-yse/boltz-rust", rev = "5c2a7aebd1669d599d76e782952b876a901bfb05" }
 chrono = "0.4"
 derivative = "2.2.0"
 env_logger = "0.11"
diff --git a/lib/core/src/send_swap.rs b/lib/core/src/send_swap.rs
index 9b44ebf..59ba1b4 100644
--- a/lib/core/src/send_swap.rs
+++ b/lib/core/src/send_swap.rs
@@ -393,7 +393,7 @@ impl SendSwapHandler {
         ensure_sdk!(
             history.len() <= 2,
             PaymentError::Generic {
-                err: "Lockup address history for Send Swap {id} has more than 2 txs".to_string()
+                err: format!("Lockup address history for Send Swap {id} has more than 2 txs")
             }
         );
 
@@ -557,7 +557,7 @@ impl SendSwapHandler {
         match (from_state, to_state) {
             (TimedOut, Created) => Ok(()),
             (_, Created) => Err(PaymentError::Generic {
-                err: "Cannot transition from {from_state:?} to Created state".to_string(),
+                err: format!("Cannot transition from {from_state:?} to Created state"),
             }),
 
             (Created | Pending, Pending) => Ok(()),
diff --git a/lib/core/src/swapper/boltz/bitcoin.rs b/lib/core/src/swapper/boltz/bitcoin.rs
index 0c7769c..782f018 100644
--- a/lib/core/src/swapper/boltz/bitcoin.rs
+++ b/lib/core/src/swapper/boltz/bitcoin.rs
@@ -3,6 +3,7 @@ use std::str::FromStr;
 use boltz_client::{
     bitcoin::{address::Address, Transaction},
     boltz::SwapTxKind,
+    fees::Fee,
     util::secrets::Preimage,
     BtcSwapTx,
 };
@@ -94,7 +95,11 @@ impl BoltzSwapper {
             false => None,
         };
 
-        let signed_tx = refund_tx.sign_refund(&refund_keypair, broadcast_fees_sat, cooperative)?;
+        let signed_tx = refund_tx.sign_refund(
+            &refund_keypair,
+            Fee::Absolute(broadcast_fees_sat),
+            cooperative,
+        )?;
         Ok(signed_tx)
     }
 
@@ -118,7 +123,7 @@ impl BoltzSwapper {
         let signed_tx = claim_tx_wrapper.sign_claim(
             &claim_keypair,
             &Preimage::from_str(&swap.preimage)?,
-            swap.claim_fees_sat,
+            Fee::Absolute(swap.claim_fees_sat),
             self.get_cooperative_details(swap.id.clone(), Some(pub_nonce), Some(partial_sig)),
         )?;
 
diff --git a/lib/core/src/swapper/boltz/liquid.rs b/lib/core/src/swapper/boltz/liquid.rs
index 49867e1..ed816ed 100644
--- a/lib/core/src/swapper/boltz/liquid.rs
+++ b/lib/core/src/swapper/boltz/liquid.rs
@@ -3,8 +3,9 @@ use std::str::FromStr;
 use boltz_client::{
     boltz::SwapTxKind,
     elements::Transaction,
+    fees::Fee,
     util::{liquid_genesis_hash, secrets::Preimage},
-    Amount, ElementsAddress as Address, LBtcSwapTx,
+    ElementsAddress as Address, LBtcSwapTx,
 };
 use log::info;
 
@@ -47,8 +48,9 @@ impl BoltzSwapper {
         let signed_tx = claim_tx_wrapper.sign_claim(
             &swap.get_claim_keypair()?,
             &Preimage::from_str(&swap.preimage)?,
-            Amount::from_sat(swap.claim_fees_sat),
+            Fee::Absolute(swap.claim_fees_sat),
             self.get_cooperative_details(swap.id.clone(), None, None),
+            true,
         )?;
 
         Ok(signed_tx)
@@ -74,8 +76,9 @@ impl BoltzSwapper {
         let signed_tx = claim_tx_wrapper.sign_claim(
             &claim_keypair,
             &Preimage::from_str(&swap.preimage)?,
-            Amount::from_sat(swap.claim_fees_sat),
+            Fee::Absolute(swap.claim_fees_sat),
             self.get_cooperative_details(swap.id.clone(), Some(pub_nonce), Some(partial_sig)),
+            true,
         )?;
 
         Ok(signed_tx)
@@ -192,8 +195,9 @@ impl BoltzSwapper {
 
         let signed_tx = refund_tx.sign_refund(
             &refund_keypair,
-            Amount::from_sat(broadcast_fees_sat),
+            Fee::Absolute(broadcast_fees_sat),
             cooperative,
+            true,
         )?;
         Ok(signed_tx)
     }