diff --git a/tests/auto/functional/orm/query/mysql_qdatetime/tst_mysql_qdatetime.cpp b/tests/auto/functional/orm/query/mysql_qdatetime/tst_mysql_qdatetime.cpp
index d5cb1c731..c8d0d35d5 100644
--- a/tests/auto/functional/orm/query/mysql_qdatetime/tst_mysql_qdatetime.cpp
+++ b/tests/auto/functional/orm/query/mysql_qdatetime/tst_mysql_qdatetime.cpp
@@ -168,7 +168,7 @@ insert_Qt_QDateTime_UtcTimezone_DatetimeColumn_UtcOnServer() const
 
         QVERIFY(qtQuery.prepare("insert into `datetimes` (`datetime`) values (?)"));
 
-        qtQuery.addBindValue(QDateTime::fromString("2022-08-28 13:14:15z", Qt::ISODate));
+        qtQuery.addBindValue(QDateTime({2022, 8, 28}, {13, 14, 15}, Qt::UTC));
 
         // QMYSQL driver doesn't care about QDateTime timezone
         QVERIFY(qtQuery.exec());
@@ -548,7 +548,7 @@ insert_Qt_QDateTime_UtcTimezone_DatetimeColumn_0200OnServer() const
 
         QVERIFY(qtQuery.prepare("insert into `datetimes` (`datetime`) values (?)"));
 
-        qtQuery.addBindValue(QDateTime::fromString("2022-08-28 13:14:15z", Qt::ISODate));
+        qtQuery.addBindValue(QDateTime({2022, 8, 28}, {13, 14, 15}, Qt::UTC));
 
         // QMYSQL driver doesn't care about QDateTime timezone
         QVERIFY(qtQuery.exec());
diff --git a/tests/auto/functional/orm/query/postgresql_qdatetime/tst_postgresql_qdatetime.cpp b/tests/auto/functional/orm/query/postgresql_qdatetime/tst_postgresql_qdatetime.cpp
index 48a5c05eb..8e198570e 100644
--- a/tests/auto/functional/orm/query/postgresql_qdatetime/tst_postgresql_qdatetime.cpp
+++ b/tests/auto/functional/orm/query/postgresql_qdatetime/tst_postgresql_qdatetime.cpp
@@ -160,7 +160,7 @@ insert_Qt_QDateTime_UtcTimezone_DatetimeColumn_UtcOnServer() const
 
         QVERIFY(qtQuery.prepare(R"(insert into "datetimes" ("datetime") values (?))"));
 
-        qtQuery.addBindValue(QDateTime::fromString("2022-08-28 13:14:15z", Qt::ISODate));
+        qtQuery.addBindValue(QDateTime({2022, 8, 28}, {13, 14, 15}, Qt::UTC));
 
         QVERIFY(qtQuery.exec());
 
@@ -535,7 +535,7 @@ insert_Qt_QDateTime_UtcTimezone_DatetimeColumn_0200OnServer() const
 
         QVERIFY(qtQuery.prepare(R"(insert into "datetimes" ("datetime") values (?))"));
 
-        qtQuery.addBindValue(QDateTime::fromString("2022-08-28 13:14:15z", Qt::ISODate));
+        qtQuery.addBindValue(QDateTime({2022, 8, 28}, {13, 14, 15}, Qt::UTC));
 
         QVERIFY(qtQuery.exec());
 
diff --git a/tests/auto/functional/orm/query/sqlite_qdatetime/tst_sqlite_qdatetime.cpp b/tests/auto/functional/orm/query/sqlite_qdatetime/tst_sqlite_qdatetime.cpp
index bed9de3f4..52dec1980 100644
--- a/tests/auto/functional/orm/query/sqlite_qdatetime/tst_sqlite_qdatetime.cpp
+++ b/tests/auto/functional/orm/query/sqlite_qdatetime/tst_sqlite_qdatetime.cpp
@@ -161,7 +161,7 @@ insert_Qt_QDateTime_UtcTimezone_DatetimeColumn() const
 
         QVERIFY(qtQuery.prepare(R"(insert into "datetimes" ("datetime") values (?))"));
 
-        qtQuery.addBindValue(QDateTime::fromString("2022-08-28 13:14:15z", Qt::ISODate));
+        qtQuery.addBindValue(QDateTime({2022, 8, 28}, {13, 14, 15}, Qt::UTC));
 
         QVERIFY(qtQuery.exec());