diff --git a/core/test/version_test.ts b/core/test/version_test.ts
index 2a49e02af..9e867dd09 100644
--- a/core/test/version_test.ts
+++ b/core/test/version_test.ts
@@ -8,11 +8,20 @@ import {version} from '@google/adk';
 import {readFileSync} from 'node:fs';
 import {describe, expect, it} from 'vitest';
 
+/** major.minor.patch, with an optional pre-release suffix. */
+const SEMVER_PATTERN = /^\d+\.\d+\.\d+(?:-[0-9A-Za-z.-]+)?$/;
+
 describe('version', () => {
   it('matches the version declared in package.json', () => {
-    const pkg: {version: string} = JSON.parse(
+    const pkg: {name: string; version: string} = JSON.parse(
       readFileSync(new URL('../package.json', import.meta.url), 'utf-8'),
     );
+
+    // release-please holds every workspace at the same version, so a read that
+    // resolved to the wrong manifest would still compare equal. Pin the name.
+    expect(pkg.name).toBe('@google/adk');
+    // Guards against both sides being undefined, which would compare equal.
+    expect(version).toMatch(SEMVER_PATTERN);
     expect(version).toBe(pkg.version);
   });
 });
diff --git a/dev/test/version_test.ts b/dev/test/version_test.ts
index 5c01eef1a..79fa1f4d5 100644
--- a/dev/test/version_test.ts
+++ b/dev/test/version_test.ts
@@ -9,11 +9,20 @@ import {describe, expect, it} from 'vitest';
 
 import {version} from '../src/version.js';
 
+/** major.minor.patch, with an optional pre-release suffix. */
+const SEMVER_PATTERN = /^\d+\.\d+\.\d+(?:-[0-9A-Za-z.-]+)?$/;
+
 describe('version', () => {
   it('matches the version declared in package.json', () => {
-    const pkg: {version: string} = JSON.parse(
+    const pkg: {name: string; version: string} = JSON.parse(
       readFileSync(new URL('../package.json', import.meta.url), 'utf-8'),
     );
+
+    // release-please holds every workspace at the same version, so a read that
+    // resolved to the wrong manifest would still compare equal. Pin the name.
+    expect(pkg.name).toBe('@google/adk-devtools');
+    // Guards against both sides being undefined, which would compare equal.
+    expect(version).toMatch(SEMVER_PATTERN);
     expect(version).toBe(pkg.version);
   });
 });