diff --git a/.github/scripts/libmongocrypt.mjs b/.github/scripts/libmongocrypt.mjs
index b933ca6..00bb205 100644
--- a/.github/scripts/libmongocrypt.mjs
+++ b/.github/scripts/libmongocrypt.mjs
@@ -2,7 +2,7 @@
 
 import util from 'node:util';
 import process from 'node:process';
-import fs from 'node:fs/promises';
+import fs, { readFile } from 'node:fs/promises';
 import child_process from 'node:child_process';
 import events from 'node:events';
 import path from 'node:path';
@@ -189,9 +189,17 @@ async function buildBindings(args, pkg) {
   await run('npm', ['run', 'prepare']);
 
   if (process.platform === 'darwin' && process.arch === 'arm64') {
+    // @ts-ignore
+    const {
+      binary: {
+        napi_versions: [
+          napiVersion
+        ]
+      }
+    } = JSON.parse(await readFile(resolveRoot('package.json'), 'utf-8'));
     // The "arm64" build is actually a universal binary
-    const armTar = `mongodb-client-encryption-v${pkg.version}-napi-v4-darwin-arm64.tar.gz`;
-    const x64Tar = `mongodb-client-encryption-v${pkg.version}-napi-v4-darwin-x64.tar.gz`;
+    const armTar = `mongodb-client-encryption-v${pkg.version}-napi-v${napiVersion}-darwin-arm64.tar.gz`;
+    const x64Tar = `mongodb-client-encryption-v${pkg.version}-napi-v${napiVersion}-darwin-x64.tar.gz`;
     await fs.copyFile(resolveRoot('prebuilds', armTar), resolveRoot('prebuilds', x64Tar));
   }
 }
diff --git a/addon/mongocrypt.h b/addon/mongocrypt.h
index 2fa074f..e161c5c 100644
--- a/addon/mongocrypt.h
+++ b/addon/mongocrypt.h
@@ -1,13 +1,7 @@
 #ifndef NODE_MONGOCRYPT_H
 #define NODE_MONGOCRYPT_H
 
-// We generally only target N-API version 4, but the instance data
-// feature is only available in N-API version 6. However, it is
-// available in all Node.js versions that have N-API version 4
-// as an experimental feature (that has not been changed since then).
-#define NAPI_VERSION 6
-#define NAPI_EXPERIMENTAL
-#define NODE_API_EXPERIMENTAL_NOGC_ENV_OPT_OUT
+#define NAPI_VERSION 9
 
 #include <napi.h>
 
diff --git a/package-lock.json b/package-lock.json
index 1c861b3..af97d5e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "hasInstallScript": true,
       "license": "Apache-2.0",
       "dependencies": {
-        "node-addon-api": "^4.3.0",
+        "node-addon-api": "^8.5.0",
         "prebuild-install": "^7.1.3"
       },
       "devDependencies": {
@@ -5157,9 +5157,13 @@
       }
     },
     "node_modules/node-addon-api": {
-      "version": "4.3.0",
-      "resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-4.3.0.tgz",
-      "integrity": "sha512-73sE9+3UaLYYFmDsFZnqCInzPyh3MqIwZO9cw58yIqAZhONrrabrYyYe3TuIqtIiOuTXVhsGau8hcrhhwSsDIQ=="
+      "version": "8.5.0",
+      "resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-8.5.0.tgz",
+      "integrity": "sha512-/bRZty2mXUIFY/xU5HLvveNHlswNJej+RnxBjOMkidWfwZzgTbPG1E3K5TOxRLOR+5hX7bSofy8yf1hZevMS8A==",
+      "license": "MIT",
+      "engines": {
+        "node": "^18 || ^20 || >= 21"
+      }
     },
     "node_modules/node-api-headers": {
       "version": "1.1.0",
diff --git a/package.json b/package.json
index ffe6f47..7a934fd 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
   "gypfile": true,
   "mongodb:libmongocrypt": "1.15.1",
   "dependencies": {
-    "node-addon-api": "^4.3.0",
+    "node-addon-api": "^8.5.0",
     "prebuild-install": "^7.1.3"
   },
   "devDependencies": {
@@ -80,7 +80,7 @@
   },
   "binary": {
     "napi_versions": [
-      4
+      9
     ]
   },
   "repository": {
@@ -96,4 +96,4 @@
       "moduleResolution": "node"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/test/bundling/webpack/install_ce.cjs b/test/bundling/webpack/install_ce.cjs
index 57e83fa..1f91987 100644
--- a/test/bundling/webpack/install_ce.cjs
+++ b/test/bundling/webpack/install_ce.cjs
@@ -1,5 +1,3 @@
-'use strict';
-
 const { execSync } = require('node:child_process');
 const { readFileSync } = require('node:fs');
 const { resolve } = require('node:path');
@@ -19,6 +17,6 @@ console.log(`mongodb-client-encryption Version: ${ceVersion}`);
 
 xtrace('npm pack --pack-destination test/bundling/webpack', { cwd: ceRoot });
 
-xtrace(`npm install --no-save mongodb-client-encryption-${ceVersion}.tgz`);
+xtrace(`npm install --ignore-scripts --no-save mongodb-client-encryption-${ceVersion}.tgz`);
 
 console.log('mongodb-client-encryption installed!');