diff --git a/GoogleUtilities/Tests/Unit/Environment/NSURLSession+GULPromisesTests.m b/GoogleUtilities/Tests/Unit/Environment/NSURLSession+GULPromisesTests.m
index deec84af..9b8b73d7 100644
--- a/GoogleUtilities/Tests/Unit/Environment/NSURLSession+GULPromisesTests.m
+++ b/GoogleUtilities/Tests/Unit/Environment/NSURLSession+GULPromisesTests.m
@@ -63,7 +63,7 @@ - (void)testDataTaskPromiseWithRequestSuccess {
 
   __auto_type taskPromise = [self.URLSessionMock gul_dataTaskPromiseWithRequest:request];
 
-  XCTAssert(FBLWaitForPromisesWithTimeout(0.5));
+  XCTAssert(FBLWaitForPromisesWithTimeout(1.0));
 
   XCTAssertTrue(taskPromise.isFulfilled);
   XCTAssertNil(taskPromise.error);