diff --git a/crates/rpc/rpc-testing-util/src/debug.rs b/crates/rpc/rpc-testing-util/src/debug.rs
index f50064e80c..97fe008fa9 100644
--- a/crates/rpc/rpc-testing-util/src/debug.rs
+++ b/crates/rpc/rpc-testing-util/src/debug.rs
@@ -292,7 +292,7 @@ pub struct DebugTraceTransactionsStream<'a> {
     stream: Pin<Box<dyn Stream<Item = TraceTransactionResult> + 'a>>,
 }
 
-impl<'a> DebugTraceTransactionsStream<'a> {
+impl DebugTraceTransactionsStream<'_> {
     /// Returns the next error result of the stream.
     pub async fn next_err(&mut self) -> Option<(RpcError, TxHash)> {
         loop {
@@ -324,7 +324,7 @@ pub struct DebugTraceBlockStream<'a> {
     stream: Pin<Box<dyn Stream<Item = DebugTraceBlockResult> + 'a>>,
 }
 
-impl<'a> DebugTraceBlockStream<'a> {
+impl DebugTraceBlockStream<'_> {
     /// Returns the next error result of the stream.
     pub async fn next_err(&mut self) -> Option<(RpcError, BlockId)> {
         loop {
diff --git a/crates/rpc/rpc-testing-util/src/trace.rs b/crates/rpc/rpc-testing-util/src/trace.rs
index c6dc16cf10..0fefef7c99 100644
--- a/crates/rpc/rpc-testing-util/src/trace.rs
+++ b/crates/rpc/rpc-testing-util/src/trace.rs
@@ -381,7 +381,7 @@ pub struct TraceBlockStream<'a> {
     stream: Pin<Box<dyn Stream<Item = TraceBlockResult> + 'a>>,
 }
 
-impl<'a> TraceBlockStream<'a> {
+impl TraceBlockStream<'_> {
     /// Returns the next error result of the stream.
     pub async fn next_err(&mut self) -> Option<(RpcError, BlockId)> {
         loop {