diff --git a/CHANGELOG.md b/CHANGELOG.md
index 279f39e..64e3e55 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,11 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 <!-- ## [v0.3.1] - 2019-04-04 -->
 
+## [v0.3.1] - 2019-04-06
+
+### Fixed
+- Timing issues in display_frame function: epd1in54 and epd2in9 were both missing a necessary wait_until_idle call at the end of their display_frame function which sometimes caused invalid/ignored commands/inputs afterwards
+
 ## [v0.3.0] - 2019-04-04
 
 ### Added
@@ -49,5 +54,6 @@ Initial release with Changelog
 - Renamed to `epd-waveshare`
 
 
-[Unreleased]: https://github.com/Caemor/eink-waveshare-rs/compare/v0.3.0...HEAD
+[Unreleased]: https://github.com/Caemor/eink-waveshare-rs/compare/v0.3.1...HEAD
+[v0.3.1]: https://github.com/Caemor/eink-waveshare-rs/compare/v0.3.0...v0.3.1
 [v0.3.0]: https://github.com/Caemor/eink-waveshare-rs/compare/v0.2.0...v0.3.0
diff --git a/Cargo.toml b/Cargo.toml
index 63255f6..c63c587 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ license = "ISC"
 name = "epd-waveshare"
 readme = "README.md"
 repository = "https://github.com/Caemor/epd-waveshare.git"
-version = "0.3.0"
+version = "0.3.1"
 edition = "2018"
 
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