diff --git a/apps/api/src/plugins/plugin-package.service.test.ts b/apps/api/src/plugins/plugin-package.service.test.ts
index 2a941f9..2ec5ca9 100644
--- a/apps/api/src/plugins/plugin-package.service.test.ts
+++ b/apps/api/src/plugins/plugin-package.service.test.ts
@@ -150,11 +150,13 @@ describe('PluginPackageService.parse — each invalid class', () => {
     );
   });
 
+  // Compressing/inflating 257 MiB is CPU-bound and blew vitest's 5 s default
+  // on a busy CI runner (flaky = defect, ADR 0014) — give it real headroom.
   it('rejects a package that inflates beyond the unpacked limit', () => {
     const huge = new Uint8Array(257 * 1024 * 1024); // zeros compress tiny, inflate large
     expectReject(
       zip({ 'manifest.json': enc(JSON.stringify(codeManifest)), 'plugin.js': huge }),
       'plugin_too_large',
     );
-  });
+  }, 30_000);
 });