diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac552b7f..016099bc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## v0.33.1 - Unreleased
+## v0.33.1 - 2023-12-02
 
 - Fixed `string.to_graphemes` failing on JavaScript runtimes when the
   `Intl.Segmenter` class is not available.
diff --git a/gleam.toml b/gleam.toml
index 0cb05311..a978a7ff 100644
--- a/gleam.toml
+++ b/gleam.toml
@@ -1,5 +1,5 @@
 name = "gleam_stdlib"
-version = "0.33.0"
+version = "0.33.1"
 gleam = ">= 0.32.0"
 licences = ["Apache-2.0"]
 description = "A standard library for the Gleam programming language"