diff --git a/package-lock.json b/package-lock.json
index 5531b84..3198e2c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@digicatapult/sqnc-process-management",
-  "version": "2.2.133",
+  "version": "2.2.134",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@digicatapult/sqnc-process-management",
-      "version": "2.2.133",
+      "version": "2.2.134",
       "license": "Apache-2.0",
       "dependencies": {
         "@polkadot/api": "^14.3.1",
@@ -41,7 +41,7 @@
         "testcontainers": "^10.14.0"
       },
       "engines": {
-        "node": ">=20.x.x",
+        "node": ">=22.x.x",
         "npm": ">=10.x.x"
       }
     },
diff --git a/package.json b/package.json
index d6b0eb6..cd93edc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@digicatapult/sqnc-process-management",
-  "version": "2.2.133",
+  "version": "2.2.134",
   "description": "SQNC Process Management Flow",
   "main": "./lib/index.js",
   "bin": {
@@ -26,7 +26,7 @@
     "/build"
   ],
   "engines": {
-    "node": ">=20.x.x",
+    "node": ">=22.x.x",
     "npm": ">=10.x.x"
   },
   "author": "Digital Catapult",
diff --git a/src/__tests__/version.test.ts b/src/__tests__/version.test.ts
new file mode 100644
index 0000000..35a4fa9
--- /dev/null
+++ b/src/__tests__/version.test.ts
@@ -0,0 +1,12 @@
+import { expect } from 'chai'
+
+import version from '../version'
+
+
+describe('version helper', () => {
+  it('returns a version number from package.json', () => {
+    expect(typeof version).to.equal('string')
+    expect(version).to.match((/^(\d+\.)?(\d+\.)?(\*|\d+)$/g))
+  })
+
+})
diff --git a/src/version.ts b/src/version.ts
index 0ddcb27..c3d7f69 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1,3 +1,3 @@
-import packageJson from '../package.json' assert { type: 'json' }
-const { version } = packageJson
-export default version
\ No newline at end of file
+const packageJson = await import('../package.json', { with: { type: 'json' }})
+const { version } = packageJson.default 
+export default version