diff --git a/Cargo.toml b/Cargo.toml
index eb9e0fd..b3b25aa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,16 +5,16 @@ authors = ["Paul Sajna <sajattack@gmail.com>"]
 edition = "2018"
 
 [dependencies]
-smart-leds-trait = "~0.1"
-cortex-m = "~0.5"
+smart-leds-trait = "~0.2"
+cortex-m = "~0.6"
 
 [dependencies.embedded-hal]
 features = ["unproven"]
 version = "0.2.1"
 
 [dev-dependencies]
-atsamd-hal = "~0.4"
-metro_m4 = "~0.1" 
-cortex-m-rt = "~0.6" 
+atsamd-hal = "~0.7"
+metro_m4 = "0.4.0"
+cortex-m-rt = "~0.6"
 panic-halt = "~0.2"
-smart-leds = "~0.1" 
+smart-leds = "~0.2"
diff --git a/examples/rainbow.rs b/examples/rainbow.rs
index acd93bf..ae96738 100644
--- a/examples/rainbow.rs
+++ b/examples/rainbow.rs
@@ -2,20 +2,19 @@
 #![no_main]
 
 extern crate cortex_m;
-extern crate panic_halt;
 extern crate metro_m4 as hal;
+extern crate panic_halt;
 extern crate ws2812_nop_samd51 as ws2812;
 
-
+use cortex_m_rt::entry;
 use hal::clock::GenericClockController;
 use hal::delay::Delay;
+use hal::pac::{CorePeripherals, Peripherals};
 use hal::prelude::*;
-use hal::{CorePeripherals, Peripherals};
-use cortex_m_rt::entry;
 
 use smart_leds::brightness;
-use smart_leds::Color;
 use smart_leds::SmartLedsWrite;
+use smart_leds::RGB8;
 use ws2812::Ws2812;
 
 #[entry]
@@ -35,7 +34,7 @@ fn main() -> ! {
     let mut neopixel = Ws2812::new(neopixel_pin);
 
     const NUM_LEDS: usize = 1;
-    let mut data = [Color::default(); NUM_LEDS];
+    let mut data = [RGB8::default(); NUM_LEDS];
 
     loop {
         for j in 0..(256 * 5) {
@@ -52,7 +51,7 @@ fn main() -> ! {
 
 /// Input a value 0 to 255 to get a color value
 /// The colours are a transition r - g - b - back to r.
-fn wheel(mut wheel_pos: u8) -> Color {
+fn wheel(mut wheel_pos: u8) -> RGB8 {
     wheel_pos = 255 - wheel_pos;
     if wheel_pos < 85 {
         return (255 - wheel_pos * 3, 0, wheel_pos * 3).into();
diff --git a/src/lib.rs b/src/lib.rs
index 737bb18..116d377 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,8 +1,8 @@
 #![no_std]
 
 use cortex_m::asm::delay;
-use embedded_hal::digital::OutputPin;
-use smart_leds_trait::{Color, SmartLedsWrite};
+use embedded_hal::digital::v2::OutputPin;
+use smart_leds_trait::{SmartLedsWrite, RGB8};
 
 pub struct Ws2812<P: OutputPin> {
     pin: P,
@@ -10,19 +10,19 @@ pub struct Ws2812<P: OutputPin> {
 
 impl<P: OutputPin> Ws2812<P> {
     pub fn new(pin: P) -> Ws2812<P> {
-        Ws2812 { pin: pin }
+        Ws2812 { pin }
     }
     fn write_byte(&mut self, data: u8) {
         let mut bitmask: u8 = 0x80;
         while bitmask != 0 {
-            self.pin.set_high();
+            let _ = self.pin.set_high();
             delay(2);
             if data & bitmask != 0 {
-                delay(3); 
-                self.pin.set_low();
+                delay(3);
+                let _ = self.pin.set_low();
             } else {
-                self.pin.set_low();
-                delay(2); 
+                let _ = self.pin.set_low();
+                delay(2);
             }
             bitmask >>= 1;
             delay(4);
@@ -35,15 +35,18 @@ impl<P> SmartLedsWrite for Ws2812<P>
 where
     P: OutputPin,
 {
+    type Color = RGB8;
     type Error = ();
-    fn write<T>(&mut self, iterator: T) -> Result<(), ()>
+    fn write<T, I>(&mut self, iterator: T) -> Result<(), ()>
     where
-        T: Iterator<Item = Color>,
+        T: Iterator<Item = I>,
+        I: Into<Self::Color>,
     {
         for item in iterator {
-            self.write_byte(item.g);
-            self.write_byte(item.r);
-            self.write_byte(item.b);
+            let color: Self::Color = item.into();
+            self.write_byte(color.g);
+            self.write_byte(color.r);
+            self.write_byte(color.b);
         }
         Ok(())
     }