diff --git a/libraries/typescript/tests/server.test.ts b/libraries/typescript/tests/server.test.ts
index b45e6f8..cb64fd8 100644
--- a/libraries/typescript/tests/server.test.ts
+++ b/libraries/typescript/tests/server.test.ts
@@ -369,9 +369,10 @@ describe('EmbeddedServer wraps logging callbacks with active-record fallback', (
         telephony_provider: 'twilio',
       });
 
-      // Allow the fire-and-forget logCallStart promise to drain.
-      await new Promise((resolve) => setTimeout(resolve, 50));
-
+      // Poll for the fire-and-forget logCallStart promise to drain. A
+      // fixed 50 ms wait was enough on Node 20 but flakes on Node 22
+      // (~10 % failure rate in CI) because the async scheduler defers
+      // the atomic-write resolve a tick longer. Bounded poll up to 2 s.
       const metaPaths: string[] = [];
       const walk = (d: string): void => {
         for (const entry of fs.readdirSync(d, { withFileTypes: true })) {
@@ -380,7 +381,13 @@ describe('EmbeddedServer wraps logging callbacks with active-record fallback', (
           else if (entry.name === 'metadata.json') metaPaths.push(full);
         }
       };
-      walk(tmp);
+      const deadline = Date.now() + 2000;
+      while (Date.now() < deadline) {
+        metaPaths.length = 0;
+        walk(tmp);
+        if (metaPaths.length >= 1) break;
+        await new Promise((resolve) => setTimeout(resolve, 25));
+      }
       expect(metaPaths).toHaveLength(1);
       const payload = JSON.parse(fs.readFileSync(metaPaths[0], 'utf8')) as {
         caller: string;