diff --git a/Cargo.toml b/Cargo.toml
index 4ea5d8b6..c4872f42 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ atomic-polyfill = "0.1.5"
 defmt = { version = "0.3", optional = true }
 log = { version = "0.4.17", optional = true }
 
-cortex-m = "0.7.3"
+cortex-m = "0.7.6"
 cortex-m-rt = "0.7.0"
 futures = { version = "0.3.17", default-features = false, features = ["async-await", "cfg-target-has-atomic", "unstable"] }
 
@@ -28,11 +28,11 @@ embedded-hal-1 = { package = "embedded-hal", version = "1.0.0-alpha.10" }
 num_enum = { version = "0.5.7", default-features = false }
 
 [patch.crates-io]
-embassy-time = { git = "https://github.com/embassy-rs/embassy", rev = "047ea9066f0d946fd4d706577b21df38fd3b1647" }
-embassy-futures = { git = "https://github.com/embassy-rs/embassy", rev = "047ea9066f0d946fd4d706577b21df38fd3b1647" }
-embassy-sync = { git = "https://github.com/embassy-rs/embassy", rev = "047ea9066f0d946fd4d706577b21df38fd3b1647" }
-embassy-net-driver-channel = { git = "https://github.com/embassy-rs/embassy", rev = "047ea9066f0d946fd4d706577b21df38fd3b1647" }
-embassy-rp = { git = "https://github.com/embassy-rs/embassy", rev = "047ea9066f0d946fd4d706577b21df38fd3b1647" }
+embassy-time = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
+embassy-futures = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
+embassy-sync = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
+embassy-net-driver-channel = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
+embassy-rp = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
 
 [workspace]
 members = ["cyw43-pio"]
diff --git a/cyw43-pio/Cargo.toml b/cyw43-pio/Cargo.toml
index 2fc6b759..4ca227d3 100644
--- a/cyw43-pio/Cargo.toml
+++ b/cyw43-pio/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 
 [dependencies]
 cyw43 = { path = "../" }
-embassy-rp = { version = "0.1.0",  features = ["defmt", "unstable-traits", "nightly", "unstable-pac", "time-driver", "pio"] }
+embassy-rp = { version = "0.1.0",  features = ["defmt", "unstable-traits", "nightly", "unstable-pac", "time-driver"] }
 pio-proc = "0.2"
 pio = "0.2.1"
 defmt = "0.3"
\ No newline at end of file
diff --git a/examples/rpi-pico-w/Cargo.toml b/examples/rpi-pico-w/Cargo.toml
index dca796e3..970db089 100644
--- a/examples/rpi-pico-w/Cargo.toml
+++ b/examples/rpi-pico-w/Cargo.toml
@@ -9,7 +9,7 @@ cyw43 = { path = "../../", features = ["defmt", "firmware-logs"] }
 cyw43-pio = { path = "../../cyw43-pio" }
 embassy-executor = { version = "0.1.0",  features = ["defmt", "integrated-timers", "executor-thread", "arch-cortex-m"] }
 embassy-time = { version = "0.1.0",  features = ["defmt", "defmt-timestamp-uptime"] }
-embassy-rp = { version = "0.1.0",  features = ["defmt", "unstable-traits", "nightly", "unstable-pac", "time-driver", "pio"] }
+embassy-rp = { version = "0.1.0",  features = ["defmt", "unstable-traits", "nightly", "unstable-pac", "time-driver"] }
 embassy-net = { version = "0.1.0", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet", "unstable-traits", "nightly"] }
 atomic-polyfill = "0.1.5"
 static_cell = "1.0"
@@ -27,14 +27,14 @@ heapless = "0.7.15"
 
 
 [patch.crates-io]
-embassy-executor = { git = "https://github.com/embassy-rs/embassy", rev = "047ea9066f0d946fd4d706577b21df38fd3b1647" }
-embassy-time = { git = "https://github.com/embassy-rs/embassy", rev = "047ea9066f0d946fd4d706577b21df38fd3b1647" }
-embassy-futures = { git = "https://github.com/embassy-rs/embassy", rev = "047ea9066f0d946fd4d706577b21df38fd3b1647" }
-embassy-sync = { git = "https://github.com/embassy-rs/embassy", rev = "047ea9066f0d946fd4d706577b21df38fd3b1647" }
-embassy-rp = { git = "https://github.com/embassy-rs/embassy", rev = "047ea9066f0d946fd4d706577b21df38fd3b1647" }
-embassy-net = { git = "https://github.com/embassy-rs/embassy", rev = "047ea9066f0d946fd4d706577b21df38fd3b1647" }
-embassy-net-driver = { git = "https://github.com/embassy-rs/embassy", rev = "047ea9066f0d946fd4d706577b21df38fd3b1647" }
-embassy-net-driver-channel = { git = "https://github.com/embassy-rs/embassy", rev = "047ea9066f0d946fd4d706577b21df38fd3b1647" }
+embassy-executor = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
+embassy-time = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
+embassy-futures = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
+embassy-sync = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
+embassy-rp = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
+embassy-net = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
+embassy-net-driver = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
+embassy-net-driver-channel = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
 
 [profile.dev]
 debug = 2
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 88519979..2582e88f 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-2023-04-02"
+channel = "nightly-2023-04-18"
 components = [ "rust-src", "rustfmt" ]
 targets = [
     "thumbv6m-none-eabi",
diff --git a/src/ioctl.rs b/src/ioctl.rs
index 89b20a2d..0fee1ad1 100644
--- a/src/ioctl.rs
+++ b/src/ioctl.rs
@@ -25,12 +25,20 @@ enum IoctlStateInner {
     Done { resp_len: usize },
 }
 
-#[derive(Default)]
 struct Wakers {
     control: WakerRegistration,
     runner: WakerRegistration,
 }
 
+impl Default for Wakers {
+    fn default() -> Self {
+        Self {
+            control: WakerRegistration::new(),
+            runner: WakerRegistration::new(),
+        }
+    }
+}
+
 pub struct IoctlState {
     state: Cell<IoctlStateInner>,
     wakers: RefCell<Wakers>,