diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9401bfc..dc4f9a5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [1.4.0] - 2023-11-26
+
+### Added
+
+- Add opt-in multithreading ([#85](https://github.com/Level/classic-level/issues/85)) ([`7d497a5`](https://github.com/Level/classic-level/commit/7d497a5)) (Matthew Keil).
+
 ## [1.3.0] - 2023-04-07
 
 ### Changed
@@ -38,6 +44,8 @@
 
 _:seedling: Initial release. If you are upgrading from `leveldown` please see [`UPGRADING.md`](UPGRADING.md)._
 
+[1.4.0]: https://github.com/Level/classic-level/releases/tag/v1.4.0
+
 [1.3.0]: https://github.com/Level/classic-level/releases/tag/v1.3.0
 
 [1.2.0]: https://github.com/Level/classic-level/releases/tag/v1.2.0
diff --git a/package.json b/package.json
index 2e57b02..45cf7e1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "classic-level",
-  "version": "1.3.0",
+  "version": "1.4.0",
   "description": "An abstract-level database backed by LevelDB",
   "license": "MIT",
   "main": "index.js",