diff --git a/CHANGELOG.md b/CHANGELOG.md
index 19c3fd2..2dcc069 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## [131.0.0](https://github.com/grain-lang/libbinaryen/compare/v130.0.0...v131.0.0) (2026-09-05)
+
+
+### ⚠ BREAKING CHANGES
+
+* Update to binaryen v131 ([#164](https://github.com/grain-lang/libbinaryen/issues/164))
+* Drop ocaml 4.13 support ([#174](https://github.com/grain-lang/libbinaryen/issues/174))
+
+### Features
+
+* Drop ocaml 4.13 support ([#174](https://github.com/grain-lang/libbinaryen/issues/174)) ([2a5f7d7](https://github.com/grain-lang/libbinaryen/commit/2a5f7d7523dbfc30cd5469f2f2d8aedb5dca8400))
+* Update to binaryen v131 ([#164](https://github.com/grain-lang/libbinaryen/issues/164)) ([0018d3f](https://github.com/grain-lang/libbinaryen/commit/0018d3fcec91bb151ac5c4ed287b7d18fbe64c68))
+
 ## [130.0.0](https://github.com/grain-lang/libbinaryen/compare/v129.0.0...v130.0.0) (2026-09-04)
 
 
diff --git a/libbinaryen.opam b/libbinaryen.opam
index a5af615..932551e 100644
--- a/libbinaryen.opam
+++ b/libbinaryen.opam
@@ -1,5 +1,5 @@
 opam-version: "2.0"
-version: "130.0.0"
+version: "131.0.0"
 synopsis: "Libbinaryen packaged for OCaml"
 maintainer: "blaine@grain-lang.org"
 author: "Blaine Bublitz"
diff --git a/package.json b/package.json
index 0e6a576..03209cb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@grain/libbinaryen",
-  "version": "130.0.0",
+  "version": "131.0.0",
   "description": "Libbinaryen packaged for OCaml.",
   "author": "Blaine Bublitz <blaine@grain-lang.org>",
   "license": "Apache-2.0",