diff --git a/src/solid/devices/backends/fstab/fstabhandling.cpp b/src/solid/devices/backends/fstab/fstabhandling.cpp
--- a/src/solid/devices/backends/fstab/fstabhandling.cpp
+++ b/src/solid/devices/backends/fstab/fstabhandling.cpp
@@ -24,6 +24,7 @@
 #include <QFile>
 #include <QObject>
 #include <QProcess>
+#include <QRegularExpression>
 #include <QTextStream>
 #include <QThreadStorage>
 
@@ -284,7 +285,9 @@
                                                               const QObject *receiver, std::function<void(QProcess *)> callback)
 {
     QStringList env = QProcess::systemEnvironment();
-    env.replaceInStrings(QRegExp("^PATH=(.*)", Qt::CaseInsensitive), "PATH=/sbin:/bin:/usr/sbin/:/usr/bin");
+    env.replaceInStrings(
+        QRegularExpression(QStringLiteral("^PATH=(.*)"), QRegularExpression::CaseInsensitiveOption),
+        QStringLiteral("PATH=/sbin:/bin:/usr/sbin/:/usr/bin"));
 
     QProcess *process = new QProcess();
 
diff --git a/src/solid/devices/backends/hal/halfstabhandling.cpp b/src/solid/devices/backends/hal/halfstabhandling.cpp
--- a/src/solid/devices/backends/hal/halfstabhandling.cpp
+++ b/src/solid/devices/backends/hal/halfstabhandling.cpp
@@ -24,6 +24,7 @@
 #include <QMultiHash>
 #include <QObject>
 #include <QProcess>
+#include <QRegularExpression>
 #include <QTextStream>
 #include <QWriteLocker>
 #include <QElapsedTimer>
@@ -178,7 +179,9 @@
         QObject *obj, const char *slot)
 {
     QStringList env = QProcess::systemEnvironment();
-    env.replaceInStrings(QRegExp("^PATH=(.*)", Qt::CaseInsensitive), "PATH=/sbin:/bin:/usr/sbin/:/usr/bin");
+    env.replaceInStrings(
+        QRegularExpression(QStringLiteral("^PATH=(.*)"), QRegularExpression::CaseInsensitiveOption),
+        QStringLiteral("PATH=/sbin:/bin:/usr/sbin/:/usr/bin"));
 
     QProcess *process = new QProcess(obj);
 
diff --git a/src/solid/devices/backends/udev/cpuinfo.cpp b/src/solid/devices/backends/udev/cpuinfo.cpp
--- a/src/solid/devices/backends/udev/cpuinfo.cpp
+++ b/src/solid/devices/backends/udev/cpuinfo.cpp
@@ -21,7 +21,7 @@
 #include "cpuinfo.h"
 
 #include <QFile>
-#include <QRegExp>
+#include <QRegularExpression>
 #include <QStringList>
 
 namespace Solid
@@ -81,18 +81,20 @@
 
 QString CpuInfo::extractCpuInfoLine(int processorNumber, const QString &regExpStr)
 {
-    const QRegExp processorRegExp("processor\\s+:\\s+(\\d+)");
-    const QRegExp regExp(regExpStr);
+    const QRegularExpression processorRegExp(
+                   QRegularExpression::anchoredPattern(QStringLiteral("processor\\s+:\\s+(\\d+)")));
+    const QRegularExpression regExp(QRegularExpression::anchoredPattern(regExpStr));
 
     int line = 0;
     while (line < cpuInfo.size()) {
-        if (processorRegExp.exactMatch(cpuInfo.at(line))) {
-            int recordProcNum = processorRegExp.capturedTexts()[1].toInt();
+        QRegularExpressionMatch match;
+        if ((match = processorRegExp.match(cpuInfo.at(line))).hasMatch()) {
+            int recordProcNum = match.captured(1).toInt();
             if (recordProcNum == processorNumber) {
                 ++line;
                 while (line < cpuInfo.size()) {
-                    if (regExp.exactMatch(cpuInfo.at(line))) {
-                        return regExp.capturedTexts()[1];
+                    if ((match = regExp.match(cpuInfo.at(line))).hasMatch()) {
+                        return match.captured(1);
                     }
                     ++line;
                 }
@@ -106,11 +108,12 @@
 
 QString CpuInfo::extractInfoLine(const QString &regExpStr)
 {
-    const QRegExp regExp(regExpStr);
+    const QRegularExpression regExp(QRegularExpression::anchoredPattern(regExpStr));
 
     foreach (const QString &line, cpuInfo) {
-        if (regExp.exactMatch(line)) {
-            return regExp.capturedTexts()[1];
+        QRegularExpressionMatch match = regExp.match(line);
+        if (match.hasMatch()) {
+            return match.captured(1);
         }
     }
     return QString();