diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ac0966e..7bbd4b5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,11 +14,11 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12, 14, 16, 18, 20]
+        node-version: [14, 16, 18, 20]
     steps:
       - uses: actions/checkout@v4
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install
@@ -33,10 +33,10 @@ jobs:
     needs: test
     steps:
       - uses: actions/checkout@v4
-      - name: Use Node.js 14
-        uses: actions/setup-node@v3
+      - name: Use Node.js 18
+        uses: actions/setup-node@v4
         with:
-          node-version: 14
+          node-version: 18
           registry-url: https://registry.npmjs.org/
       - run: npm install
       - run: npm run fetch
diff --git a/package.json b/package.json
index b790790..cb3c06e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "libheif-js",
-  "version": "1.17.1",
+  "version": "1.18.0",
   "description": "Emscripten distribution of libheif for Node.JS and the browser",
   "main": "index.js",
   "scripts": {
diff --git a/scripts/install.js b/scripts/install.js
index 408e9cb..c298e60 100644
--- a/scripts/install.js
+++ b/scripts/install.js
@@ -8,7 +8,7 @@ const gunzip = require('gunzip-maybe');
 
 const esbuild = require('esbuild');
 
-const version = 'v1.17.1';
+const version = 'v1.18.0';
 
 const base = `https://github.com/catdad-experiments/libheif-emscripten/releases/download/${version}`;
 const tarball = `${base}/libheif.tar.gz`;
@@ -37,13 +37,31 @@ const autoReadStream = async stream => {
   await fs.remove(path.resolve(root, 'libheif'));
   await fs.remove(path.resolve(root, 'libheif-wasm'));
 
+  // libheif started using optional chaining, which is not
+  // supported in older versions of node, but we'd like to
+  // support them here, so transform to a target from before
+  // https://esbuild.github.io/content-types/#javascript
+  const target = 'es2019';
+
   for await (const entry of (await getStream(tarball)).pipe(gunzip()).pipe(tar.extract())) {
     const basedir = entry.header.name.split('/')[0];
 
     if (entry.header.type === 'file' && ['libheif', 'libheif-wasm'].includes(basedir)) {
       const outfile = path.resolve(root, entry.header.name);
       console.log(`  writing "${outfile}"`);
-      await fs.outputFile(outfile, await autoReadStream(entry));
+
+      let file = await autoReadStream(entry);
+
+      if (path.extname(outfile) === '.js') {
+        const result = await esbuild.transform(file, {
+          target,
+          minify: true
+        });
+
+        file = result.code;
+      }
+
+      await fs.outputFile(outfile, file);
     } else {
       await autoReadStream(entry);
     }
@@ -53,6 +71,7 @@ const autoReadStream = async stream => {
     entryPoints: [path.resolve(root, 'scripts/bundle.js')],
     bundle: true,
     minify: true,
+    target,
     external: ['fs', 'path', 'require'],
     loader: {
       '.wasm': 'binary'
diff --git a/test/libheif.test.js b/test/libheif.test.js
index ae8e694..733fd0c 100644
--- a/test/libheif.test.js
+++ b/test/libheif.test.js
@@ -87,7 +87,7 @@ function runTests(libheif) {
   it('is the correct version', () => {
     expect(libheif).to.have.property('heif_get_version')
       .and.to.be.a('function');
-    expect(libheif.heif_get_version()).to.equal('1.17.1')
+    expect(libheif.heif_get_version()).to.equal('1.18.0')
       .and.to.equal(pkg.version);
   });