diff --git a/frontend/src/test/appStartupHash.test.tsx b/frontend/src/test/appStartupHash.test.tsx
index 5cc6e47..c5b15d9 100644
--- a/frontend/src/test/appStartupHash.test.tsx
+++ b/frontend/src/test/appStartupHash.test.tsx
@@ -154,10 +154,10 @@ const publicChannel = {
 // contacts, unreads) that must all settle before conversation selection
 // renders. This suite passes in isolation, but under the full parallel suite
 // (~70 files) CPU contention can stretch that startup well past RTL's 1000ms
-// default — and even past vitest's 5000ms test timeout — for any waitFor in
-// this file. It's starvation, not a hang, so give this file generous headroom
-// on both timeouts: a healthy render still settles in ~100ms (nothing is
-// slowed), only a starved run waits longer.
+// default — and occasionally past 10s on GitHub's shared runners — for any
+// waitFor in this file. It's starvation, not a hang, so give this file generous
+// headroom on both timeouts: a healthy render still settles in ~100ms (nothing
+// is slowed), only a starved run waits longer.
 //
 // These MUST run at module scope, not in beforeAll: vitest bakes each test's
 // timeout in when it() registers the test (during collection, before any
@@ -167,8 +167,8 @@ const publicChannel = {
 // 10s but the test killed at 5s) that flaked under load. vi.setConfig is scoped
 // to this file (each file runs in its own isolated worker), so other files are
 // unaffected.
-vi.setConfig({ testTimeout: 15000 });
-configure({ asyncUtilTimeout: 10000 });
+vi.setConfig({ testTimeout: 45000 });
+configure({ asyncUtilTimeout: 30000 });
 
 describe('App startup hash resolution', () => {
   beforeEach(() => {