diff --git a/embassy-stm32/src/can/bxcan.rs b/embassy-stm32/src/can/bxcan.rs
index c9ed196e..9e10a8b0 100644
--- a/embassy-stm32/src/can/bxcan.rs
+++ b/embassy-stm32/src/can/bxcan.rs
@@ -5,7 +5,7 @@ use embassy::util::Unborrow;
 use embassy_hal_common::unborrow;
 
 use crate::gpio::{
-    OutputType::{OpenDrain, PushPull},
+    sealed::OutputType::{OpenDrain, PushPull},
     Pin,
 };
 use crate::{peripherals, rcc::RccPeripheral};
diff --git a/embassy-stm32/src/eth/v2/mod.rs b/embassy-stm32/src/eth/v2/mod.rs
index 5d4151ec..8eb7c339 100644
--- a/embassy-stm32/src/eth/v2/mod.rs
+++ b/embassy-stm32/src/eth/v2/mod.rs
@@ -10,7 +10,7 @@ use embassy_net::{Device, DeviceCapabilities, LinkState, PacketBuf, MTU};
 
 use crate::gpio::sealed::Pin as __GpioPin;
 use crate::gpio::Pin as GpioPin;
-use crate::gpio::{AnyPin, OutputType::PushPull};
+use crate::gpio::{sealed::OutputType::PushPull, AnyPin};
 use crate::pac::gpio::vals::Ospeedr;
 use crate::pac::{ETH, RCC, SYSCFG};
 use crate::peripherals;
diff --git a/embassy-stm32/src/gpio.rs b/embassy-stm32/src/gpio.rs
index d5792d6f..14f2559e 100644
--- a/embassy-stm32/src/gpio.rs
+++ b/embassy-stm32/src/gpio.rs
@@ -55,14 +55,6 @@ impl From<Speed> for vals::Ospeedr {
     }
 }
 
-/// Type settings
-#[derive(Debug)]
-#[cfg_attr(feature = "defmt", derive(defmt::Format))]
-pub enum OutputType {
-    PushPull,
-    OpenDrain,
-}
-
 /// GPIO input driver.
 pub struct Input<'d, T: Pin> {
     pub(crate) pin: T,
@@ -272,6 +264,14 @@ impl<'d, T: Pin> InputPin for OutputOpenDrain<'d, T> {
 pub(crate) mod sealed {
     use super::*;
 
+    /// Output type settings
+    #[derive(Debug)]
+    #[cfg_attr(feature = "defmt", derive(defmt::Format))]
+    pub enum OutputType {
+        PushPull,
+        OpenDrain,
+    }
+
     pub trait Pin {
         fn pin_port(&self) -> u8;
 
diff --git a/embassy-stm32/src/i2c/v1.rs b/embassy-stm32/src/i2c/v1.rs
index c7b7c81f..c5d5dee0 100644
--- a/embassy-stm32/src/i2c/v1.rs
+++ b/embassy-stm32/src/i2c/v1.rs
@@ -9,7 +9,7 @@ use embedded_hal::blocking::i2c::WriteRead;
 
 use crate::pac::i2c;
 
-use crate::gpio::OutputType::OpenDrain;
+use crate::gpio::sealed::OutputType::OpenDrain;
 
 pub struct I2c<'d, T: Instance> {
     phantom: PhantomData<&'d mut T>,
diff --git a/embassy-stm32/src/spi/v1.rs b/embassy-stm32/src/spi/v1.rs
index 297d232b..53d8252e 100644
--- a/embassy-stm32/src/spi/v1.rs
+++ b/embassy-stm32/src/spi/v1.rs
@@ -2,9 +2,11 @@
 
 use crate::dma::NoDma;
 use crate::gpio::{
-    sealed::Pin,
+    sealed::{
+        OutputType::{OpenDrain, PushPull},
+        Pin,
+    },
     AnyPin,
-    OutputType::{OpenDrain, PushPull},
 };
 use crate::pac::spi;
 use crate::spi::{
diff --git a/embassy-stm32/src/usart/v1.rs b/embassy-stm32/src/usart/v1.rs
index 16c1af38..d1dd6830 100644
--- a/embassy-stm32/src/usart/v1.rs
+++ b/embassy-stm32/src/usart/v1.rs
@@ -1,4 +1,4 @@
-use crate::gpio::OutputType::{OpenDrain, PushPull};
+use crate::gpio::sealed::OutputType::{OpenDrain, PushPull};
 use core::future::Future;
 use core::marker::PhantomData;
 use embassy::util::Unborrow;
diff --git a/embassy-stm32/src/usart/v2.rs b/embassy-stm32/src/usart/v2.rs
index e3f88c0a..5e669635 100644
--- a/embassy-stm32/src/usart/v2.rs
+++ b/embassy-stm32/src/usart/v2.rs
@@ -13,7 +13,7 @@ use futures::TryFutureExt;
 
 use super::*;
 use crate::dma::NoDma;
-use crate::gpio::OutputType::{OpenDrain, PushPull};
+use crate::gpio::sealed::OutputType::{OpenDrain, PushPull};
 use crate::pac::usart::{regs, vals};
 
 pub struct Uart<'d, T: Instance, TxDma = NoDma, RxDma = NoDma> {