diff --git a/https-tls/cert-watch/Cargo.toml b/https-tls/cert-watch/Cargo.toml
index f3e24600..9351f45d 100644
--- a/https-tls/cert-watch/Cargo.toml
+++ b/https-tls/cert-watch/Cargo.toml
@@ -14,5 +14,5 @@ log.workspace = true
 notify = "6"
 rustls.workspace = true
 rustls-pemfile = "1"
-tokio = { workspace = true, features = ["time", "rt-multi-thread", "macros"] }
+tokio = { workspace = true, features = ["time", "rt", "macros"] }
 parking_lot = "0.12"
diff --git a/https-tls/cert-watch/src/main.rs b/https-tls/cert-watch/src/main.rs
index ff482ba7..4aede18f 100644
--- a/https-tls/cert-watch/src/main.rs
+++ b/https-tls/cert-watch/src/main.rs
@@ -22,7 +22,7 @@ async fn index(req: HttpRequest) -> HttpResponse {
     )
 }
 
-#[tokio::main(worker_threads = 2)]
+#[tokio::main(flavor = "current_thread")]
 async fn main() -> eyre::Result<()> {
     color_eyre::install()?;
     env_logger::init_from_env(env_logger::Env::default().default_filter_or("info"));