diff --git a/embassy-executor/Cargo.toml b/embassy-executor/Cargo.toml
index d8cc3e8a7..8e36637a3 100644
--- a/embassy-executor/Cargo.toml
+++ b/embassy-executor/Cargo.toml
@@ -62,7 +62,6 @@ embassy-macros = { version = "0.2.1", path = "../embassy-macros" }
 embassy-time = { version = "0.1.5", path = "../embassy-time", optional = true}
 atomic-polyfill = "1.0.1"
 critical-section = "1.1"
-static_cell = "1.1"
 
 # arch-cortex-m dependencies
 cortex-m = { version = "0.7.6", optional = true }
diff --git a/embassy-executor/src/lib.rs b/embassy-executor/src/lib.rs
index 020f9095c..f2c86d8e6 100644
--- a/embassy-executor/src/lib.rs
+++ b/embassy-executor/src/lib.rs
@@ -47,7 +47,6 @@ pub use spawner::*;
 pub mod _export {
     #[cfg(feature = "rtos-trace")]
     pub use rtos_trace::trace;
-    pub use static_cell::StaticCell;
 
     /// Expands the given block of code when `embassy-executor` is compiled with
     /// the `rtos-trace-interrupt` feature.
diff --git a/embassy-macros/src/macros/main.rs b/embassy-macros/src/macros/main.rs
index 7c4d55163..3c0d58567 100644
--- a/embassy-macros/src/macros/main.rs
+++ b/embassy-macros/src/macros/main.rs
@@ -53,8 +53,7 @@ pub fn wasm() -> TokenStream {
     quote! {
         #[wasm_bindgen::prelude::wasm_bindgen(start)]
         pub fn main() -> Result<(), wasm_bindgen::JsValue> {
-            static EXECUTOR: ::embassy_executor::_export::StaticCell<::embassy_executor::Executor> = ::embassy_executor::_export::StaticCell::new();
-            let executor = EXECUTOR.init(::embassy_executor::Executor::new());
+            let executor = ::std::boxed::Box::leak(::std::boxed::Box::new(::embassy_executor::Executor::new()));
 
             executor.start(|spawner| {
                 spawner.spawn(__embassy_main(spawner)).unwrap();
diff --git a/embassy-rp/Cargo.toml b/embassy-rp/Cargo.toml
index 5dc15c732..6be9f4bb0 100644
--- a/embassy-rp/Cargo.toml
+++ b/embassy-rp/Cargo.toml
@@ -95,4 +95,4 @@ rp2040-boot2 = "0.3"
 
 [dev-dependencies]
 embassy-executor = { version = "0.3.1", path = "../embassy-executor", features = ["nightly", "arch-std", "executor-thread"] }
-static_cell = "1.1"
+static_cell = { version = "2" }
diff --git a/embassy-sync/Cargo.toml b/embassy-sync/Cargo.toml
index 81aeafae2..9a47fa212 100644
--- a/embassy-sync/Cargo.toml
+++ b/embassy-sync/Cargo.toml
@@ -45,4 +45,4 @@ futures-util = { version = "0.3.17", features = [ "channel" ] }
 
 # Enable critical-section implementation for std, for tests
 critical-section = { version = "1.1", features = ["std"] }
-static_cell = "1.1"
+static_cell = { version = "2" }
diff --git a/embassy-usb-logger/Cargo.toml b/embassy-usb-logger/Cargo.toml
index 29a8e421a..48b8bbcc6 100644
--- a/embassy-usb-logger/Cargo.toml
+++ b/embassy-usb-logger/Cargo.toml
@@ -13,6 +13,6 @@ embassy-usb = { version = "0.1.0", path = "../embassy-usb" }
 embassy-sync = { version = "0.4.0", path = "../embassy-sync" }
 embassy-futures = { version = "0.1.0", path = "../embassy-futures" }
 futures = { version = "0.3", default-features = false }
-static_cell = "1"
+static_cell = { version = "2" }
 usbd-hid = "0.6.0"
 log = "0.4"
diff --git a/examples/nrf52840/Cargo.toml b/examples/nrf52840/Cargo.toml
index 0554b7e06..f803adb03 100644
--- a/examples/nrf52840/Cargo.toml
+++ b/examples/nrf52840/Cargo.toml
@@ -48,7 +48,7 @@ defmt = "0.3"
 defmt-rtt = "0.4"
 
 fixed = "1.10.0"
-static_cell = "1.1"
+static_cell = { version = "2" }
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
diff --git a/examples/nrf5340/Cargo.toml b/examples/nrf5340/Cargo.toml
index 9c62508cd..4196d61ab 100644
--- a/examples/nrf5340/Cargo.toml
+++ b/examples/nrf5340/Cargo.toml
@@ -42,7 +42,7 @@ embedded-io-async = { version = "0.6.0" }
 defmt = "0.3"
 defmt-rtt = "0.4"
 
-static_cell = { version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
diff --git a/examples/rp/Cargo.toml b/examples/rp/Cargo.toml
index d020a0f5d..fbe7acae1 100644
--- a/examples/rp/Cargo.toml
+++ b/examples/rp/Cargo.toml
@@ -47,7 +47,8 @@ embedded-hal-async = "1.0.0-rc.1"
 embedded-hal-bus = { version = "0.1.0-rc.1", features = ["async"] }
 embedded-io-async = { version = "0.6.0", features = ["defmt-03"] }
 embedded-storage = { version = "0.3" }
-static_cell = { version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
+portable-atomic = { version = "1.5", features = ["critical-section"] }
 log = "0.4"
 pio-proc = "0.2"
 pio = "0.2.1"
diff --git a/examples/std/Cargo.toml b/examples/std/Cargo.toml
index 12ec40fad..99511292f 100644
--- a/examples/std/Cargo.toml
+++ b/examples/std/Cargo.toml
@@ -24,7 +24,7 @@ nix = "0.26.2"
 clap = { version = "3.0.0-beta.5", features = ["derive"] }
 rand_core = { version = "0.6.3", features = ["std"] }
 heapless = { version = "0.7.5", default-features = false }
-static_cell = { version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
 
 [profile.release]
 debug = 2
diff --git a/examples/stm32f0/Cargo.toml b/examples/stm32f0/Cargo.toml
index 953fa5845..3f781d762 100644
--- a/examples/stm32f0/Cargo.toml
+++ b/examples/stm32f0/Cargo.toml
@@ -17,7 +17,8 @@ panic-probe = "0.3"
 embassy-sync = { version = "0.4.0", path = "../../embassy-sync", features = ["defmt"] }
 embassy-executor = { version = "0.3.1", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.1.5", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
-static_cell = { version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
+portable-atomic = { version = "1.5", features = ["unsafe-assume-single-core"] }
 
 [profile.release]
 debug = 2
diff --git a/examples/stm32f3/Cargo.toml b/examples/stm32f3/Cargo.toml
index 548191ca6..0ab25c4c2 100644
--- a/examples/stm32f3/Cargo.toml
+++ b/examples/stm32f3/Cargo.toml
@@ -24,7 +24,7 @@ futures = { version = "0.3.17", default-features = false, features = ["async-awa
 heapless = { version = "0.7.5", default-features = false }
 nb = "1.0.0"
 embedded-storage = "0.3.0"
-static_cell = { version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
 
 [profile.release]
 debug = 2
diff --git a/examples/stm32f334/Cargo.toml b/examples/stm32f334/Cargo.toml
index b42cc9961..b3bfde441 100644
--- a/examples/stm32f334/Cargo.toml
+++ b/examples/stm32f334/Cargo.toml
@@ -23,4 +23,4 @@ futures = { version = "0.3.17", default-features = false, features = ["async-awa
 heapless = { version = "0.7.5", default-features = false }
 nb = "1.0.0"
 embedded-storage = "0.3.0"
-static_cell = { version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
diff --git a/examples/stm32f4/Cargo.toml b/examples/stm32f4/Cargo.toml
index 916d0490b..fca182036 100644
--- a/examples/stm32f4/Cargo.toml
+++ b/examples/stm32f4/Cargo.toml
@@ -27,7 +27,7 @@ heapless = { version = "0.7.5", default-features = false }
 nb = "1.0.0"
 embedded-storage = "0.3.0"
 micromath = "2.0.0"
-static_cell = { version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
 chrono = { version = "^0.4", default-features = false}
 
 [profile.release]
diff --git a/examples/stm32f7/Cargo.toml b/examples/stm32f7/Cargo.toml
index 35757e623..0a567d046 100644
--- a/examples/stm32f7/Cargo.toml
+++ b/examples/stm32f7/Cargo.toml
@@ -27,7 +27,7 @@ nb = "1.0.0"
 rand_core = "0.6.3"
 critical-section = "1.1"
 embedded-storage = "0.3.0"
-static_cell = { version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
 
 [profile.release]
 debug = 2
diff --git a/examples/stm32g0/Cargo.toml b/examples/stm32g0/Cargo.toml
index fb7f780f9..42d7d328f 100644
--- a/examples/stm32g0/Cargo.toml
+++ b/examples/stm32g0/Cargo.toml
@@ -20,6 +20,7 @@ embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
 heapless = { version = "0.7.5", default-features = false }
+portable-atomic = { version = "1.5", features = ["unsafe-assume-single-core"] }
 
 [profile.release]
 debug = 2
diff --git a/examples/stm32h5/Cargo.toml b/examples/stm32h5/Cargo.toml
index c4f41d1cf..db56b685a 100644
--- a/examples/stm32h5/Cargo.toml
+++ b/examples/stm32h5/Cargo.toml
@@ -31,7 +31,7 @@ critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.3.0"
 embedded-storage = "0.3.0"
-static_cell = { version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
 
 # cargo build/run
 [profile.dev]
diff --git a/examples/stm32h7/Cargo.toml b/examples/stm32h7/Cargo.toml
index d6b14a602..c300c8644 100644
--- a/examples/stm32h7/Cargo.toml
+++ b/examples/stm32h7/Cargo.toml
@@ -31,7 +31,7 @@ critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.3.0"
 embedded-storage = "0.3.0"
-static_cell = { version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
 chrono = { version = "^0.4", default-features = false }
 
 # cargo build/run
diff --git a/examples/stm32l0/Cargo.toml b/examples/stm32l0/Cargo.toml
index edd1d0261..e294d0422 100644
--- a/examples/stm32l0/Cargo.toml
+++ b/examples/stm32l0/Cargo.toml
@@ -33,7 +33,8 @@ panic-probe = { version = "0.3", features = ["print-defmt"] }
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
 heapless = { version = "0.7.5", default-features = false }
 embedded-hal = "0.2.6"
-static_cell = "1.1"
+static_cell = { version = "2" }
+portable-atomic = { version = "1.5", features = ["unsafe-assume-single-core"] }
 
 [profile.release]
 debug = 2
diff --git a/examples/stm32l4/Cargo.toml b/examples/stm32l4/Cargo.toml
index 2fbba4634..5d79cf1ed 100644
--- a/examples/stm32l4/Cargo.toml
+++ b/examples/stm32l4/Cargo.toml
@@ -32,7 +32,7 @@ futures = { version = "0.3.17", default-features = false, features = ["async-awa
 heapless = { version = "0.7.5", default-features = false }
 chrono = { version = "^0.4", default-features = false }
 rand = { version = "0.8.5", default-features = false }
-static_cell = {version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
 
 micromath = "2.0.0"
 
diff --git a/examples/stm32l5/Cargo.toml b/examples/stm32l5/Cargo.toml
index 2457b40d7..1cd32892d 100644
--- a/examples/stm32l5/Cargo.toml
+++ b/examples/stm32l5/Cargo.toml
@@ -26,7 +26,7 @@ futures = { version = "0.3.17", default-features = false, features = ["async-awa
 heapless = { version = "0.7.5", default-features = false }
 rand_core = { version = "0.6.3", default-features = false }
 embedded-io-async = { version = "0.6.0" }
-static_cell = { version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
 
 [profile.release]
 debug = 2
diff --git a/examples/stm32wb/Cargo.toml b/examples/stm32wb/Cargo.toml
index 5864906d0..daacc11c4 100644
--- a/examples/stm32wb/Cargo.toml
+++ b/examples/stm32wb/Cargo.toml
@@ -22,7 +22,7 @@ embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
 heapless = { version = "0.7.5", default-features = false }
-static_cell = { version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
 
 [features]
 default = ["ble", "mac"]
diff --git a/examples/stm32wba/Cargo.toml b/examples/stm32wba/Cargo.toml
index 12e0e5ab0..c52848500 100644
--- a/examples/stm32wba/Cargo.toml
+++ b/examples/stm32wba/Cargo.toml
@@ -20,7 +20,7 @@ embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
 heapless = { version = "0.7.5", default-features = false }
-static_cell = { version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
 
 [profile.release]
 debug = 2
diff --git a/tests/nrf/Cargo.toml b/tests/nrf/Cargo.toml
index 6441d5c30..f7a104090 100644
--- a/tests/nrf/Cargo.toml
+++ b/tests/nrf/Cargo.toml
@@ -18,7 +18,7 @@ embassy-net-esp-hosted = { version = "0.1.0", path = "../../embassy-net-esp-host
 embassy-net-enc28j60 = { version = "0.1.0", path = "../../embassy-net-enc28j60", features = ["defmt"] }
 embedded-hal-async = { version = "1.0.0-rc.1" }
 embedded-hal-bus = { version = "0.1.0-rc.1", features = ["async"] }
-static_cell = { version = "1.1", features = [ "nightly" ] }
+static_cell = { version = "2", features = [ "nightly" ] }
 perf-client = { path = "../perf-client" }
 
 defmt = "0.3"
diff --git a/tests/rp/Cargo.toml b/tests/rp/Cargo.toml
index d947568ba..1bf149c90 100644
--- a/tests/rp/Cargo.toml
+++ b/tests/rp/Cargo.toml
@@ -31,7 +31,8 @@ panic-probe = { version = "0.3.0", features = ["print-defmt"] }
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
 embedded-io-async = { version = "0.6.0" }
 embedded-storage = { version = "0.3" }
-static_cell = { version = "1.1", features = ["nightly"]}
+static_cell = { version = "2", features = ["nightly"]}
+portable-atomic = { version = "1.5", features = ["critical-section"] }
 pio = "0.2"
 pio-proc = "0.2"
 rand = { version = "0.8.5", default-features = false }
diff --git a/tests/rp/src/bin/gpio_multicore.rs b/tests/rp/src/bin/gpio_multicore.rs
index 6ab7f6717..a4923b6ba 100644
--- a/tests/rp/src/bin/gpio_multicore.rs
+++ b/tests/rp/src/bin/gpio_multicore.rs
@@ -5,12 +5,12 @@ teleprobe_meta::target!(b"rpi-pico");
 
 use defmt::{info, unwrap};
 use embassy_executor::Executor;
-use embassy_executor::_export::StaticCell;
 use embassy_rp::gpio::{Input, Level, Output, Pull};
 use embassy_rp::multicore::{spawn_core1, Stack};
 use embassy_rp::peripherals::{PIN_0, PIN_1};
 use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
 use embassy_sync::channel::Channel;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 
 static mut CORE1_STACK: Stack<1024> = Stack::new();
diff --git a/tests/rp/src/bin/i2c.rs b/tests/rp/src/bin/i2c.rs
index 425f2d086..7ddb71c7d 100644
--- a/tests/rp/src/bin/i2c.rs
+++ b/tests/rp/src/bin/i2c.rs
@@ -5,12 +5,12 @@ teleprobe_meta::target!(b"rpi-pico");
 
 use defmt::{assert_eq, info, panic, unwrap};
 use embassy_executor::Executor;
-use embassy_executor::_export::StaticCell;
 use embassy_rp::multicore::{spawn_core1, Stack};
 use embassy_rp::peripherals::{I2C0, I2C1};
 use embassy_rp::{bind_interrupts, i2c, i2c_slave};
 use embedded_hal_1::i2c::Operation;
 use embedded_hal_async::i2c::I2c;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _, panic_probe as _, panic_probe as _};
 
 static mut CORE1_STACK: Stack<1024> = Stack::new();
diff --git a/tests/rp/src/bin/multicore.rs b/tests/rp/src/bin/multicore.rs
index f4188135e..6560b6c8d 100644
--- a/tests/rp/src/bin/multicore.rs
+++ b/tests/rp/src/bin/multicore.rs
@@ -5,10 +5,10 @@ teleprobe_meta::target!(b"rpi-pico");
 
 use defmt::{info, unwrap};
 use embassy_executor::Executor;
-use embassy_executor::_export::StaticCell;
 use embassy_rp::multicore::{spawn_core1, Stack};
 use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
 use embassy_sync::channel::Channel;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 
 static mut CORE1_STACK: Stack<1024> = Stack::new();
diff --git a/tests/stm32/Cargo.toml b/tests/stm32/Cargo.toml
index 1ca14ee87..14f27678f 100644
--- a/tests/stm32/Cargo.toml
+++ b/tests/stm32/Cargo.toml
@@ -8,8 +8,8 @@ autobins = false
 [features]
 stm32f103c8 = ["embassy-stm32/stm32f103c8", "not-gpdma"]
 stm32f429zi = ["embassy-stm32/stm32f429zi", "chrono", "eth", "stop", "can", "not-gpdma", "dac-adc-pin", "rng"]
-stm32g071rb = ["embassy-stm32/stm32g071rb", "not-gpdma", "dac-adc-pin"]
-stm32c031c6 = ["embassy-stm32/stm32c031c6", "not-gpdma"]
+stm32g071rb = ["embassy-stm32/stm32g071rb", "cm0", "not-gpdma", "dac-adc-pin"]
+stm32c031c6 = ["embassy-stm32/stm32c031c6", "cm0", "not-gpdma"]
 stm32g491re = ["embassy-stm32/stm32g491re", "chrono", "not-gpdma", "rng"]
 stm32h755zi = ["embassy-stm32/stm32h755zi-cm7", "chrono", "not-gpdma", "eth", "dac-adc-pin", "rng"]
 stm32h753zi = ["embassy-stm32/stm32h753zi", "chrono", "not-gpdma", "eth", "rng"]
@@ -19,7 +19,7 @@ stm32h563zi = ["embassy-stm32/stm32h563zi", "chrono", "eth", "rng"]
 stm32u585ai = ["embassy-stm32/stm32u585ai", "chrono", "rng"]
 stm32u5a5zj = ["embassy-stm32/stm32u5a5zj", "chrono", "rng"]
 stm32wba52cg = ["embassy-stm32/stm32wba52cg", "chrono", "rng"]
-stm32l073rz = ["embassy-stm32/stm32l073rz", "not-gpdma", "rng"]
+stm32l073rz = ["embassy-stm32/stm32l073rz", "cm0", "not-gpdma", "rng"]
 stm32l152re = ["embassy-stm32/stm32l152re", "chrono", "not-gpdma"]
 stm32l4a6zg = ["embassy-stm32/stm32l4a6zg", "chrono", "not-gpdma", "rng"]
 stm32l4r5zi = ["embassy-stm32/stm32l4r5zi", "chrono", "not-gpdma", "rng"]
@@ -42,6 +42,8 @@ embassy-stm32-wpan = []
 not-gpdma = []
 dac-adc-pin = []
 
+cm0 = ["portable-atomic/unsafe-assume-single-core"]
+
 [dependencies]
 teleprobe-meta = "1"
 
@@ -66,7 +68,8 @@ micromath = "2.0.0"
 panic-probe = { version = "0.3.0", features = ["print-defmt"] }
 rand_core = { version = "0.6", default-features = false }
 rand_chacha = { version = "0.3", default-features = false }
-static_cell = {version = "1.1", features = ["nightly"] }
+static_cell = { version = "2", features = ["nightly"] }
+portable-atomic = { version = "1.5", features = [] }
 
 chrono = { version = "^0.4", default-features = false, optional = true}