diff --git a/metrics-benchmark/Cargo.toml b/metrics-benchmark/Cargo.toml
index e10cba61..dceec935 100644
--- a/metrics-benchmark/Cargo.toml
+++ b/metrics-benchmark/Cargo.toml
@@ -3,15 +3,15 @@ name = "metrics-benchmark"
 version = "0.1.1-alpha.5"
 authors = ["Toby Lawrence <toby@nuclearfurnace.com>"]
 edition = "2018"
-rust-version = "1.56.1"
+rust-version = "1.61.0"
 publish = false
 
 [dependencies]
 log = "0.4"
-pretty_env_logger = "0.4"
+pretty_env_logger = "0.5"
 getopts = "0.2"
 hdrhistogram = { version = "7.2", default-features = false }
 quanta = "0.11"
 portable-atomic = { version = "1", default-features = false, features = ["fallback"] }
-metrics = { version = "^0.21", path = "../metrics" }
-metrics-util = { version = "^0.15", path = "../metrics-util" }
+metrics = { version = "0.21", path = "../metrics" }
+metrics-util = { version = "0.15", path = "../metrics-util" }
diff --git a/metrics-exporter-prometheus/src/builder.rs b/metrics-exporter-prometheus/src/builder.rs
index 05715018..53824140 100644
--- a/metrics-exporter-prometheus/src/builder.rs
+++ b/metrics-exporter-prometheus/src/builder.rs
@@ -461,9 +461,7 @@ impl PrometheusBuilder {
             ExporterConfig::PushGateway { endpoint, interval, username, password } => {
                 let exporter = async move {
                     let client = Client::new();
-                    let auth = username
-                        .as_ref()
-                        .map(|name| basic_auth(name, password.as_ref().map(|x| &**x)));
+                    let auth = username.as_ref().map(|name| basic_auth(name, password.as_deref()));
 
                     loop {
                         // Sleep for `interval` amount of time, and then do a push.
diff --git a/metrics-exporter-tcp/Cargo.toml b/metrics-exporter-tcp/Cargo.toml
index 86ee4b45..391849db 100644
--- a/metrics-exporter-tcp/Cargo.toml
+++ b/metrics-exporter-tcp/Cargo.toml
@@ -29,7 +29,7 @@ tracing = { version = "0.1", default-features = false, features = ["attributes"]
 prost-build = "0.11"
 
 [dev-dependencies]
-quanta = "0.10.0"
+quanta = "0.11"
 tracing = "0.1"
 tracing-subscriber = "0.3"
 rand = "0.8"
diff --git a/metrics-util/CHANGELOG.md b/metrics-util/CHANGELOG.md
index 2ce3c741..122e654c 100644
--- a/metrics-util/CHANGELOG.md
+++ b/metrics-util/CHANGELOG.md
@@ -17,6 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Update `aho-corasick` to `1.0`.
+- Updated `hashbrown` to `0.14`.
 
 ## [0.15.0] - 2023-04-16
 
diff --git a/metrics-util/Cargo.toml b/metrics-util/Cargo.toml
index 50eef3b4..7c91de53 100644
--- a/metrics-util/Cargo.toml
+++ b/metrics-util/Cargo.toml
@@ -58,7 +58,7 @@ radix_trie = { version = "0.2", default-features = false, optional = true }
 ordered-float = { version = "3.4", default-features = false, optional = true }
 num_cpus = { version = "1", default-features = false, optional = true }
 ahash = { version = "0.8", default-features = false, optional = true }
-hashbrown = { version = "0.13", default-features = false, optional = true, features = ["ahash"] }
+hashbrown = { version = "0.14", default-features = false, optional = true, features = ["ahash"] }
 
 [dev-dependencies]
 approx = "0.5"