diff --git a/Cargo.lock b/Cargo.lock
index 8c25a94..df79882 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6582,9 +6582,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.7.12"
+version = "0.7.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61e7c3654c13bcd040d4a03abee2c75b1d14a37b423cf5a813ceae1cc903ec6a"
+checksum = "d7fcaa8d55a2bdd6b83ace262b016eca0d79ee02818c5c1bcdf0305114081078"
 dependencies = [
  "bytes",
  "futures-core",
diff --git a/src/runtime_builder.rs b/src/runtime_builder.rs
index 43bb0b5..794d74b 100644
--- a/src/runtime_builder.rs
+++ b/src/runtime_builder.rs
@@ -130,6 +130,7 @@ impl RuntimeBuilder {
     /// Set the initial seed for the crypto extension
     #[cfg(feature = "crypto")]
     #[cfg_attr(docsrs, doc(cfg(feature = "crypto")))]
+    #[must_use]
     pub fn with_cryto_seed(mut self, seed: u64) -> Self {
         self.0.extension_options.crypto_seed = Some(seed);
         self
@@ -186,6 +187,7 @@ impl RuntimeBuilder {
     /// Set the options for the node extension
     #[cfg(feature = "node_experimental")]
     #[cfg_attr(docsrs, doc(cfg(feature = "node_experimental")))]
+    #[must_use]
     pub fn with_node_resolver(mut self, resolver: std::sync::Arc<crate::RustyResolver>) -> Self {
         self.0.extension_options.node_resolver = resolver;
         self