diff --git a/embassy-stm32/Cargo.toml b/embassy-stm32/Cargo.toml
index f25e6baf0..ee0ec1abf 100644
--- a/embassy-stm32/Cargo.toml
+++ b/embassy-stm32/Cargo.toml
@@ -15,7 +15,7 @@ defmt = { version = "0.2.0", optional = true }
 log = { version = "0.4.11", optional = true }
 cortex-m-rt = { version = "0.6.13", features = ["device"] }
 cortex-m = "0.7.1"
-embedded-hal = { version = "0.2.4" }
+embedded-hal = { version = "0.2.4", features = ["unproven"] }
 futures = { version = "0.3.5", default-features = false, features = ["async-await"] }
 rand_core = { version = "0.6.2" }
 sdio-host = { version = "0.5.0" }
diff --git a/embassy-stm32/src/gpio.rs b/embassy-stm32/src/gpio.rs
index 023ec7a28..873c73b4e 100644
--- a/embassy-stm32/src/gpio.rs
+++ b/embassy-stm32/src/gpio.rs
@@ -3,7 +3,7 @@ use core::convert::Infallible;
 use core::marker::PhantomData;
 use embassy::util::Unborrow;
 use embassy_extras::{unborrow, unsafe_impl_unborrow};
-use embedded_hal::digital::v2::{InputPin, OutputPin, StatefulOutputPin};
+use embedded_hal::digital::v2::{toggleable, InputPin, OutputPin, StatefulOutputPin};
 
 use crate::pac;
 use crate::pac::gpio::{self, vals};
@@ -148,6 +148,8 @@ impl<'d, T: Pin> StatefulOutputPin for Output<'d, T> {
     }
 }
 
+impl<'d, T: Pin> toggleable::Default for Output<'d, T> {}
+
 pub(crate) mod sealed {
     use super::*;