diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index da75fa53..22abacde 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,7 +1,7 @@
 # Before upgrading check that everything is available on all tier1 targets here:
 # https://rust-lang.github.io/rustup-components-history
 [toolchain]
-channel = "nightly-2023-02-07"
+channel = "nightly-2023-04-02"
 components = [ "rust-src", "rustfmt", "llvm-tools-preview" ]
 targets = [
     "thumbv7em-none-eabi",
diff --git a/tests/nrf/src/bin/timer.rs b/tests/nrf/src/bin/timer.rs
new file mode 100644
index 00000000..9b9b5fb2
--- /dev/null
+++ b/tests/nrf/src/bin/timer.rs
@@ -0,0 +1,25 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::{assert, info};
+use embassy_executor::Spawner;
+use embassy_time::{Duration, Instant, Timer};
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let _p = embassy_nrf::init(Default::default());
+    info!("Hello World!");
+
+    let start = Instant::now();
+    Timer::after(Duration::from_millis(100)).await;
+    let end = Instant::now();
+    let ms = (end - start).as_millis();
+    info!("slept for {} ms", ms);
+    assert!(ms >= 99);
+    assert!(ms < 110);
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}