diff --git a/Cargo.lock b/Cargo.lock
index 2c261a7..985c715 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3054,7 +3054,6 @@ dependencies = [
  "claims",
  "config",
  "log",
- "once_cell",
  "reqwest",
  "secrecy",
  "serde",
diff --git a/Cargo.toml b/Cargo.toml
index 35ed29e..fe48ba0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -40,4 +40,3 @@ secrecy = { version = "0.8", features = ["serde"] }
 [dev-dependencies]
 claims = "0.7"
 reqwest = { version = "0.12", features = ["json"] }
-once_cell = "1.7.2"
diff --git a/tests/health_check.rs b/tests/health_check.rs
index 4ff3f1a..20fba74 100644
--- a/tests/health_check.rs
+++ b/tests/health_check.rs
@@ -1,13 +1,13 @@
-use once_cell::sync::Lazy;
 use sqlx::{Connection, Executor, PgConnection, PgPool};
 use std::net::TcpListener;
+use std::sync::LazyLock;
 use uuid::Uuid;
 use zero2prod::configuration::{get_configuration, DatabaseSettings};
 use zero2prod::startup::run;
 use zero2prod::telemetry::{get_subscriber, init_subscriber};
 
 // Ensure that the `tracing` stack is only initialised once using `once_cell`
-static TRACING: Lazy<()> = Lazy::new(|| {
+static TRACING: LazyLock<()> = LazyLock::new(|| {
     let default_filter_level = "info".to_string();
     let subscriber_name = "test".to_string();
     if std::env::var("TEST_LOG").is_ok() {
@@ -27,7 +27,7 @@ pub struct TestApp {
 async fn spawn_app() -> TestApp {
     // The first time `initialize` is invoked the code in `TRACING` is executed.
     // All other invocations will instead skip execution.
-    Lazy::force(&TRACING);
+    LazyLock::force(&TRACING);
 
     let listener = TcpListener::bind("127.0.0.1:0").expect("Failed to bind random port");
     // We retrieve the port assigned to us by the OS