diff --git a/autotests/karchivetest.cpp b/autotests/karchivetest.cpp
--- a/autotests/karchivetest.cpp
+++ b/autotests/karchivetest.cpp
@@ -29,6 +29,7 @@
 #include <QFileInfo>
 #include <kfilterdev.h>
 #include <qtemporarydir.h>
+#include <QRegularExpression>
 
 #ifndef Q_OS_WIN
 #include <unistd.h> // symlink
@@ -538,13 +539,13 @@
 
         // This one was added with addLocalFile, so ignore mode.
         QString str = listing[14];
-        str.replace(QRegExp(QStringLiteral("mode.*user=")), QStringLiteral("user="));
+        str.replace(QRegularExpression(QStringLiteral("mode.*user=")), QStringLiteral("user="));
 
         compareEntryWithTimestamp(str, QString("user=%1 group=%2 path=z/test3 type=file size=13").arg(owner).arg(group), creationTime);
 
 #ifndef Q_OS_WIN
         str = listing[15];
-        str.replace(QRegExp(QStringLiteral("mode.*path=")), QStringLiteral("path="));
+        str.replace(QRegularExpression(QStringLiteral("mode.*path=")), QStringLiteral("path="));
 
         compareEntryWithTimestamp(str, QString("path=z/test3_symlink type=file size=0 symlink=test3"), creationTime);
 #endif
@@ -1006,11 +1007,11 @@
     QCOMPARE(listing[14], QString("mode=40777 path=z type=dir"));
     // This one was added with addLocalFile, so ignore mode
     QString str = listing[15];
-    str.replace(QRegExp(QStringLiteral("mode.*path=")), QStringLiteral("path="));
+    str.replace(QRegularExpression(QStringLiteral("mode.*path=")), QStringLiteral("path="));
     QCOMPARE(str, QString("path=z/test3 type=file size=13"));
 #ifndef Q_OS_WIN
     str = listing[16];
-    str.replace(QRegExp(QStringLiteral("mode.*path=")), QStringLiteral("path="));
+    str.replace(QRegularExpression(QStringLiteral("mode.*path=")), QStringLiteral("path="));
     QCOMPARE(str, QString("path=z/test3_symlink type=file size=5 symlink=test3"));
 #endif
 
@@ -1397,11 +1398,11 @@
         QCOMPARE(listing[13], QString("mode=40777 path=z type=dir"));
         // This one was added with addLocalFile, so ignore mode/user/group.
         QString str = listing[14];
-        str.replace(QRegExp(QStringLiteral("mode.*path=")), QStringLiteral("path="));
+        str.replace(QRegularExpression(QStringLiteral("mode.*path=")), QStringLiteral("path="));
         QCOMPARE(str, QString("path=z/test3 type=file size=13"));
 #ifndef Q_OS_WIN
         str = listing[15];
-        str.replace(QRegExp(QStringLiteral("mode.*path=")), QStringLiteral("path="));
+        str.replace(QRegularExpression(QStringLiteral("mode.*path=")), QStringLiteral("path="));
         QCOMPARE(str, QString("path=z/test3_symlink type=file size=0 symlink=test3"));
 #endif