diff --git a/hello/FOTAJob.spec.ts b/hello/FOTAJob.spec.ts
new file mode 100644
index 00000000..5af42034
--- /dev/null
+++ b/hello/FOTAJob.spec.ts
@@ -0,0 +1,46 @@
+import assert from 'node:assert/strict'
+import { describe, it } from 'node:test'
+import { validateWithTypeBox } from 'validator/validateWithTypeBox.js'
+import { UpgradePath } from './FOTAJob.js'
+
+const v = validateWithTypeBox(UpgradePath)
+
+void describe('UpgradePath', () => {
+	void it('should accept an upgrade path with plain versions', () =>
+		assert.equal(
+			hasError(
+				v({
+					'2.0.0': 'APP*1e29dfa3*v2.0.1',
+					'2.0.1': 'APP*cd5412d9*v2.0.2',
+				}),
+			),
+			false,
+		))
+
+	void describe('support semver ranges', () => {
+		for (const range of [
+			'<', // Less than
+			'<=', // Less than or equal to
+			'>', // Greater than
+			'>=', // Greater than or equal to
+		]) {
+			void it(range, () =>
+				assert.equal(
+					hasError(
+						v({
+							[`${range}2.0.0`]: 'APP*1e29dfa3*v2.0.1',
+						}),
+					),
+					false,
+				),
+			)
+		}
+	})
+
+	void describe('reject invalid upgrade paths', () => {
+		void it('should reject an upgrade path with an invalid version', () =>
+			assert.equal(hasError(v({ foo: 'bar' } as any)), true))
+	})
+})
+
+const hasError = (result: ReturnType<typeof v>) => 'errors' in result
diff --git a/hello/FOTAJob.ts b/hello/FOTAJob.ts
index 6109191d..cab940d3 100644
--- a/hello/FOTAJob.ts
+++ b/hello/FOTAJob.ts
@@ -16,10 +16,14 @@ export enum FOTAJobTarget {
 }
 
 export const UpgradePath = Type.Record(
-	Type.RegExp(/[0-9]+\.[0-9]+\.[0-9]+/, {
-		title: 'Version',
-		description: 'The version the bundle is targeting',
-	}),
+	Type.RegExp(
+		new RegExp(`^(${['<', '<=', '>', '>='].join('|')})?[0-9]+.[0-9]+.[0-9]+$`),
+		{
+			title: 'Version',
+			description:
+				'The version the bundle is targeting. Supports ranges (e.g >=1.0.0).',
+		},
+	),
 	Type.RegExp(
 		/^(APP|MODEM|BOOT|SOFTDEVICE|BOOTLOADER|MDM_FULL)\*[0-9a-zA-Z]{8}\*.*$/,
 		{
@@ -27,7 +31,7 @@ export const UpgradePath = Type.Record(
 			description: 'The nRF Cloud firmware bundle ID',
 		},
 	),
-	{ minProperties: 1 },
+	{ minProperties: 1, additionalProperties: false },
 )
 
 export const FOTAJob = Type.Object(