diff --git a/libsquoosh/package-lock.json b/libsquoosh/package-lock.json
index 2674ae10..55252060 100644
--- a/libsquoosh/package-lock.json
+++ b/libsquoosh/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@squoosh/lib",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@squoosh/lib",
-      "version": "0.3.1",
+      "version": "0.4.0",
       "license": "Apache-2.0",
       "dependencies": {
         "wasm-feature-detect": "^1.2.11",
diff --git a/libsquoosh/package.json b/libsquoosh/package.json
index 27501208..9e0dc08b 100644
--- a/libsquoosh/package.json
+++ b/libsquoosh/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@squoosh/lib",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "description": "A Node library for Squoosh",
   "public": true,
   "main": "./build/index.js",