diff --git a/CHANGELOG.md b/CHANGELOG.md
index 44d9d30377..b93bbf2a64 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- `TypeError` issue related to constructors using js-waku in a JS project
+  ([#323](https://github.com/status-im/js-waku/issues/323)).
+
 ## [0.14.1] - 2021-10-22
 
 ### Fixed
diff --git a/package.json b/package.json
index fc2f667d76..69c677c598 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "build": "run-s build:**",
     "build:main": "tsc -p tsconfig.json",
     "build:dev": "tsc -p tsconfig.dev.json",
-    "build:esm": "tsc --module es2015 --target es5 --outDir build/esm",
+    "build:esm": "tsc --module es2015 --target es2015 --outDir build/esm",
     "build:umd": "webpack --config webpack.config.js",
     "build:umd:min": "webpack --config webpack.config.min.js",
     "build:umd:bundle": "webpack --config webpack.config.bundle.js",