diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2999ca1..a48102e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.42.1](https://github.com/grain-lang/binaryen.ml/compare/v0.42.0...v0.42.1) (2026-10-13)
+
+
+### Features
+
+* Upgrade ci dependencies ([#289](https://github.com/grain-lang/binaryen.ml/issues/289)) ([66a86c4](https://github.com/grain-lang/binaryen.ml/commit/66a86c4ea621a48d5d7e7ceef15937734077e3ba))
+
 ## [0.42.0](https://github.com/grain-lang/binaryen.ml/compare/v0.41.0...v0.42.0) (2026-09-16)
 
 
diff --git a/binaryen.opam b/binaryen.opam
index 817e801..d07d755 100644
--- a/binaryen.opam
+++ b/binaryen.opam
@@ -1,5 +1,5 @@
 opam-version: "2.0"
-version: "0.42.0"
+version: "0.42.1"
 synopsis: "OCaml bindings for Binaryen"
 maintainer: "oscar@grain-lang.org"
 author: "Oscar Spencer"
diff --git a/package.json b/package.json
index 0c09ad3..27421f1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@grain/binaryen.ml",
-  "version": "0.42.0",
+  "version": "0.42.1",
   "description": "OCaml bindings for Binaryen.",
   "author": "Oscar Spencer <oscar@grain-lang.org>",
   "license": "Apache-2.0",