diff --git a/src/graph/flow.rs b/src/graph/flow.rs
index d14ef67..468d543 100644
--- a/src/graph/flow.rs
+++ b/src/graph/flow.rs
@@ -160,21 +160,11 @@ fn to_dot(
     writeln!(out, "digraph used_edges {{").expect("");
 
     for (address, balance) in account_balances {
-        writeln!(
-            out,
-            "    \"{}\" [label=\"{}: {}\"];",
-            address, address, balance
-        )
-        .expect("");
+        writeln!(out, "    \"{address}\" [label=\"{address}: {balance}\"];",).expect("");
     }
     for (from, out_edges) in edges {
         for (to, capacity) in out_edges {
-            writeln!(
-                out,
-                "    \"{}\" -> \"{}\" [label=\"{}\"];",
-                from, to, capacity
-            )
-            .expect("");
+            writeln!(out, "    \"{from}\" -> \"{to}\" [label=\"{capacity}\"];",).expect("");
         }
     }
     writeln!(out, "}}").expect("");
diff --git a/src/server.rs b/src/server.rs
index 074af41..bdbe780 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -139,10 +139,7 @@ fn compute_transfer(
             },
             max_distance,
         );
-        println!(
-            "Computed flow with max distance {:?}: {}",
-            max_distance, flow
-        );
+        println!("Computed flow with max distance {max_distance:?}: {flow}");
         socket.write_all(
             chunked_response(
                 &(jsonrpc_result(
diff --git a/src/types/address.rs b/src/types/address.rs
index 23f4082..891b7b8 100644
--- a/src/types/address.rs
+++ b/src/types/address.rs
@@ -11,7 +11,7 @@ impl Address {
 
 impl Debug for Address {
     fn fmt(&self, f: &mut Formatter) -> std::fmt::Result {
-        write!(f, "{}", self)
+        write!(f, "{self}")
     }
 }
 
@@ -37,7 +37,7 @@ impl Display for Address {
     fn fmt(&self, f: &mut Formatter) -> std::fmt::Result {
         write!(f, "0x")?;
         for b in self.0 {
-            write!(f, "{:02x}", b)?;
+            write!(f, "{b:02x}")?;
         }
         Ok(())
     }
diff --git a/src/types/u256.rs b/src/types/u256.rs
index 3d2a329..f731b19 100644
--- a/src/types/u256.rs
+++ b/src/types/u256.rs
@@ -15,11 +15,11 @@ impl U256 {
     pub const MAX: U256 = U256::new(u128::MAX, u128::MAX);
     pub fn to_decimal(self) -> String {
         let value = BigUint::from(self.0[0]) << 128 | BigUint::from(self.0[1]);
-        format!("{}", value)
+        format!("{value}")
     }
     pub fn to_decimal_fraction(self) -> String {
         let value = BigUint::from(self.0[0]) << 128 | BigUint::from(self.0[1]);
-        let formatted = format!("{}", value);
+        let formatted = format!("{value}");
         match formatted.len() {
             18.. => {
                 format!(