diff --git a/Cargo.toml b/Cargo.toml
index f016321c610..ef88a7a5862 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -113,7 +113,7 @@ rustls = { version = "0.23", default-features = false, features = [
 ] }
 tokio-test = "0.4"
 tokio-tungstenite = "0.23"
-tower = { version = "0.4", features = ["util"] }
+tower = { version = "0.5", features = ["util"] }
 
 # tracing
 tracing = "0.1"
diff --git a/crates/rpc-client/src/client.rs b/crates/rpc-client/src/client.rs
index b960239e35e..370d18ccaa6 100644
--- a/crates/rpc-client/src/client.rs
+++ b/crates/rpc-client/src/client.rs
@@ -39,7 +39,7 @@ impl<T> Clone for RpcClient<T> {
 
 impl RpcClient<Identity> {
     /// Create a new [`ClientBuilder`].
-    pub fn builder() -> ClientBuilder<Identity> {
+    pub const fn builder() -> ClientBuilder<Identity> {
         ClientBuilder { builder: ServiceBuilder::new() }
     }
 }