diff --git a/CHANGELOG.md b/CHANGELOG.md
index 40e60f1..8497d61 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 ## Unreleased
 
+## [0.5.9]
+
+### Added - 2024-08-05
+* Adds `Either<A, B>.handleErrorWith(f: (A) -> Either<C, B>): Either<C, B>` (Chris Myers)
+
 ## [0.5.8]
 
 ### Added - 2024-07-31
diff --git a/gradle.properties b/gradle.properties
index d523ace..d351b40 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 GROUP=app.cash.quiver
-VERSION_NAME=0.5.9-SNAPSHOT
+VERSION_NAME=0.5.9
 POM_URL=https://github.com/cashapp/quiver/
 POM_SCM_URL=https://github.com/cashapp/quiver/
 POM_SCM_CONNECTION=scm:git:git://github.com/cashapp/quiver.git