diff --git a/tests/auto/qtpromise/qpromise/delay/tst_delay.cpp b/tests/auto/qtpromise/qpromise/delay/tst_delay.cpp
index 5a35aec..4b018db 100644
--- a/tests/auto/qtpromise/qpromise/delay/tst_delay.cpp
+++ b/tests/auto/qtpromise/qpromise/delay/tst_delay.cpp
@@ -34,8 +34,12 @@ void tst_qpromise_delay::fulfilled()
 
     QCOMPARE(waitForValue(p, -1), 42);
     QCOMPARE(p.isFulfilled(), true);
-    QVERIFY(elapsed >= 1000 * 0.95);    // Qt::CoarseTimer (default) Coarse timers try to
-    QVERIFY(elapsed <= 1000 * 1.05);    // keep accuracy within 5% of the desired interval.
+
+    // Qt::CoarseTimer (default) Coarse timers try to
+    // keep accuracy within 5% of the desired interval.
+    // Require accuracy within 6% for passing the test.
+    QVERIFY(elapsed >= 1000 * 0.94);
+    QVERIFY(elapsed <= 1000 * 1.06);
 }
 
 void tst_qpromise_delay::rejected()
@@ -51,5 +55,5 @@ void tst_qpromise_delay::rejected()
 
     QCOMPARE(waitForError(p, QString()), QString("foo"));
     QCOMPARE(p.isRejected(), true);
-    QVERIFY(elapsed < 5);
+    QVERIFY(elapsed <= 10);
 }
diff --git a/tests/auto/qtpromise/qpromise/timeout/tst_timeout.cpp b/tests/auto/qtpromise/qpromise/timeout/tst_timeout.cpp
index bf43c61..fd40348 100644
--- a/tests/auto/qtpromise/qpromise/timeout/tst_timeout.cpp
+++ b/tests/auto/qtpromise/qpromise/timeout/tst_timeout.cpp
@@ -87,6 +87,10 @@ void tst_qpromise_timeout::timeout()
     QCOMPARE(waitForValue(p, -1), -1);
     QCOMPARE(p.isRejected(), true);
     QCOMPARE(failed, true);
-    QVERIFY(elapsed >= 2000 * 0.95);    // Qt::CoarseTimer (default) Coarse timers try to
-    QVERIFY(elapsed <= 2000 * 1.05);    // keep accuracy within 5% of the desired interval.
+
+    // Qt::CoarseTimer (default) Coarse timers try to
+    // keep accuracy within 5% of the desired interval.
+    // Require accuracy within 6% for passing the test.
+    QVERIFY(elapsed >= 2000 * 0.94);
+    QVERIFY(elapsed <= 2000 * 1.06);
 }