diff --git a/CHANGELOG.md b/CHANGELOG.md
index 65be773..1b992a5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## Unreleased
+## v0.9.0 - 2024-05-20
 
 - Provided functions for handling timestamp values. The `timestamp` function
   coerces a `#(#(Int, Int, Int), #(Int, Int, Int))` value representing
diff --git a/gleam.toml b/gleam.toml
index 5dcfb42..7882427 100644
--- a/gleam.toml
+++ b/gleam.toml
@@ -1,5 +1,5 @@
 name = "gleam_pgo"
-version = "0.8.0"
+version = "0.9.0"
 gleam = ">= 0.32.0"
 licences = ["Apache-2.0"]
 description = "Gleam bindings to the PGO PostgreSQL client"