diff --git a/src/deps.test.ts b/src/deps.test.ts
index 9c48a79..9530214 100644
--- a/src/deps.test.ts
+++ b/src/deps.test.ts
@@ -17,19 +17,8 @@ export { isNode } from "https://deno.land/x/which_runtime@0.2.0/mod.ts";
  * then cleans up and restores the cwd when complete.
  */
 export async function withTempDir(action: (path: PathRef) => Promise<void> | void) {
-  const originalDirPath = Deno.cwd();
-  const dirPath = await Deno.makeTempDir();
-  Deno.chdir(dirPath);
-  try {
-    await action(createPathRef(dirPath).resolve());
-  } finally {
-    try {
-      await Deno.remove(dirPath, { recursive: true });
-    } catch {
-      // ignore
-    }
-    Deno.chdir(originalDirPath);
-  }
+  await using dirPath = usingTempDir();
+  await action(createPathRef(dirPath).resolve());
 }
 
 export function usingTempDir(): PathRef & AsyncDisposable {
diff --git a/src/request.test.ts b/src/request.test.ts
index c07f1aa..cb62f88 100644
--- a/src/request.test.ts
+++ b/src/request.test.ts
@@ -283,7 +283,7 @@ Deno.test("$.request", (t) => {
     step("ensure times out waiting for body", async () => {
       const request = new RequestBuilder()
         .url(new URL("/sleep-body/10000", serverUrl))
-        .timeout(100)
+        .timeout(200) // so high because CI was slow
         .showProgress();
       const response = await request.fetch();
       let caughtErr: TimeoutError | undefined;
@@ -297,7 +297,7 @@ Deno.test("$.request", (t) => {
         // DOMException instead, but not sure
         assert(caughtErr != null);
       } else {
-        assertEquals(caughtErr!, new TimeoutError("Request timed out after 100 milliseconds."));
+        assertEquals(caughtErr!, new TimeoutError("Request timed out after 200 milliseconds."));
         assert(caughtErr!.stack!.includes("request.test.ts")); // current file
       }
     });