diff --git a/Cargo.toml b/Cargo.toml
index 8027e3a..3623a68 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ readme = "README.md"
 [dependencies]
 keyberon-macros = { version = "0.1.0", path = "./keyberon-macros" }
 either = { version = "1.6", default-features = false }
-embedded-hal = { version = "0.2", features = ["unproven"] }
+embedded-hal = { version = "1.0" }
 usb-device = "0.2"
 heapless = "0.7"
 arraydeque = { version = "0.4.5", default-features = false }
diff --git a/src/hid.rs b/src/hid.rs
index 2cddcf3..798f657 100644
--- a/src/hid.rs
+++ b/src/hid.rs
@@ -120,7 +120,11 @@ impl<B: UsbBus, D: HidDevice> HidClass<'_, B, D> {
         }
     }
 
-    pub fn new_with_polling_interval(device: D, alloc: &UsbBusAllocator<B>, interval: u8) -> HidClass<'_, B, D> {
+    pub fn new_with_polling_interval(
+        device: D,
+        alloc: &UsbBusAllocator<B>,
+        interval: u8,
+    ) -> HidClass<'_, B, D> {
         let max_packet_size = device.max_packet_size();
         HidClass {
             device,
diff --git a/src/matrix.rs b/src/matrix.rs
index 1f4e0ad..718c57e 100644
--- a/src/matrix.rs
+++ b/src/matrix.rs
@@ -1,6 +1,5 @@
 //! Hardware pin switch matrix handling.
-
-use embedded_hal::digital::v2::{InputPin, OutputPin};
+use embedded_hal::digital::{InputPin, OutputPin};
 
 /// Describes the hardware-level matrix of switches.
 ///
@@ -65,7 +64,7 @@ where
         for (ri, row) in self.rows.iter_mut().enumerate() {
             row.set_low()?;
             delay();
-            for (ci, col) in self.cols.iter().enumerate() {
+            for (ci, col) in self.cols.iter_mut().enumerate() {
                 if col.is_low()? {
                     keys[ri][ci] = true;
                 }
@@ -124,7 +123,7 @@ where
         let mut keys = [[false; CS]; RS];
 
         for (ri, row) in self.pins.iter_mut().enumerate() {
-            for (ci, col_option) in row.iter().enumerate() {
+            for (ci, col_option) in row.iter_mut().enumerate() {
                 if let Some(col) = col_option {
                     if col.is_low()? {
                         keys[ri][ci] = true;