diff --git a/CHANGELOG.md b/CHANGELOG.md
index 20b5fe0..9b3ffe0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.20.0] - 2023-12-14
+### Changed
+- Updated the v1 release of `embedded-hal` from `1.0.0-rc.2` to `1.0.0-rc.3`.
+- Updated the v1 release of `embedded-hal-nb` from `1.0.0-rc.2` to `1.0.0-rc.3`.
+
 ## [0.19.0] - 2023-11-29
 ### Changed
 - Updated the v1 release of `embedded-hal` from `1.0.0-rc.1` to `1.0.0-rc.2`.
@@ -163,7 +168,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [0.1.0] - 2020-09-12
 - Initial release
 
-[Unreleased]: https://github.com/ftdi-rs/ftdi-embedded-hal/compare/v0.19.0...HEAD
+[Unreleased]: https://github.com/ftdi-rs/ftdi-embedded-hal/compare/v0.20.0...HEAD
+[0.20.0]: https://github.com/ftdi-rs/ftdi-embedded-hal/compare/v0.19.0...v0.20.0
 [0.19.0]: https://github.com/ftdi-rs/ftdi-embedded-hal/compare/v0.18.0...v0.19.0
 [0.18.0]: https://github.com/ftdi-rs/ftdi-embedded-hal/compare/v0.17.0...v0.18.0
 [0.17.0]: https://github.com/ftdi-rs/ftdi-embedded-hal/compare/v0.16.0...v0.17.0
diff --git a/Cargo.toml b/Cargo.toml
index bf4ff3b..1d95857 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ftdi-embedded-hal"
-version = "0.19.0"
+version = "0.20.0"
 authors = ["Alex Martens <alex@thinglab.org>"]
 description = "embedded-hal implementation for FTDI USB devices."
 keywords = ["ftdi", "usb", "io", "hal"]
@@ -17,8 +17,8 @@ default = []
 
 [dependencies]
 eh0 = { package = "embedded-hal", version = "0.2.7", features = ["unproven"] }
-eh1 = { package = "embedded-hal", version = "=1.0.0-rc.2" }
-ehnb1 = { package = "embedded-hal-nb", version = "=1.0.0-rc.2" }
+eh1 = { package = "embedded-hal", version = "=1.0.0-rc.3" }
+ehnb1 = { package = "embedded-hal-nb", version = "=1.0.0-rc.3" }
 ftdi = { version = "0.1.3", optional = true }
 ftdi-mpsse = "0.1"
 libftd2xx = { version = "0.32", optional = true }
diff --git a/README.md b/README.md
index a55200c..93b5eef 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ FTDI device into the [embedded-hal] traits.
 
 ```toml
 [dependencies.ftdi-embedded-hal]
-version = "0.19.0"
+version = "0.20.0"
 features = ["libftd2xx", "libftd2xx-static"]
 ```
 
diff --git a/src/gpio.rs b/src/gpio.rs
index 3c8ef91..681dbc4 100644
--- a/src/gpio.rs
+++ b/src/gpio.rs
@@ -177,11 +177,11 @@ where
     E: std::error::Error,
     Error<E>: From<E>,
 {
-    fn is_high(&self) -> Result<bool, Self::Error> {
+    fn is_high(&mut self) -> Result<bool, Self::Error> {
         self.get()
     }
 
-    fn is_low(&self) -> Result<bool, Self::Error> {
+    fn is_low(&mut self) -> Result<bool, Self::Error> {
         self.get().map(|res| !res)
     }
 }
diff --git a/src/lib.rs b/src/lib.rs
index 38c33ba..f34345e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -18,7 +18,7 @@
 //!
 //! ```toml
 //! [dependencies.ftdi-embedded-hal]
-//! version = "0.19.0"
+//! version = "0.20.0"
 //! features = ["libftd2xx", "libftd2xx-static"]
 //! ```
 //!