diff --git a/cli/kdeconnect-cli.cpp b/cli/kdeconnect-cli.cpp
--- a/cli/kdeconnect-cli.cpp
+++ b/cli/kdeconnect-cli.cpp
@@ -152,7 +152,8 @@
             urls.append(url);
 
             // Check for more arguments
-            for (const QString& input : parser.positionalArguments()) {
+            const auto args = parser.positionalArguments();
+            for (const QString& input : args) {
                 QUrl url = QUrl::fromUserInput(input, QDir::currentPath());
                 urls.append(url);
             }
diff --git a/core/daemon.cpp b/core/daemon.cpp
--- a/core/daemon.cpp
+++ b/core/daemon.cpp
@@ -289,7 +289,7 @@
 QStringList Daemon::pairingRequests() const
 {
     QStringList ret;
-    for(Device* dev: d->m_devices) {
+    for(Device* dev: qAsConst(d->m_devices)) {
         if (dev->hasPairingRequests())
             ret += dev->id();
     }
diff --git a/core/device.cpp b/core/device.cpp
--- a/core/device.cpp
+++ b/core/device.cpp
@@ -441,7 +441,7 @@
 
 QHostAddress Device::getLocalIpAddress() const
 {
-    for (DeviceLink* dl : d->m_deviceLinks) {
+    for (DeviceLink* dl : qAsConst(d->m_deviceLinks)) {
         LanDeviceLink* ldl = dynamic_cast<LanDeviceLink*>(dl);
         if (ldl) {
             return ldl->hostAddress();
diff --git a/interfaces/remotesinksmodel.cpp b/interfaces/remotesinksmodel.cpp
--- a/interfaces/remotesinksmodel.cpp
+++ b/interfaces/remotesinksmodel.cpp
@@ -76,16 +76,16 @@
             this, &RemoteSinksModel::refreshSinkList);
 
     connect(m_dbusInterface, &OrgKdeKdeconnectDeviceRemotesystemvolumeInterface::volumeChanged, this, [this](const QString& name, int volume) {
-        for (Sink* s: m_sinkList) {
+        for (Sink* s: qAsConst(m_sinkList)) {
             if (s->name == name) {
                 s->volume = volume;
                 Q_EMIT dataChanged(index(0,0), index(m_sinkList.size() - 1, 0));
             }
         }
     });
 
     connect(m_dbusInterface, &OrgKdeKdeconnectDeviceRemotesystemvolumeInterface::mutedChanged, this, [this](const QString& name, bool muted) {
-        for (Sink* s: m_sinkList) {
+        for (Sink* s: qAsConst(m_sinkList)) {
             if (s->name == name) {
                 s->muted = muted;
                 Q_EMIT dataChanged(index(0,0), index(m_sinkList.size() - 1, 0));
diff --git a/plugins/sendnotifications/sendnotifications_config.cpp b/plugins/sendnotifications/sendnotifications_config.cpp
--- a/plugins/sendnotifications/sendnotifications_config.cpp
+++ b/plugins/sendnotifications/sendnotifications_config.cpp
@@ -109,8 +109,9 @@
     config()->set(QStringLiteral("generalUrgency"), m_ui->spin_urgency->value());
 
     QVariantList list;
-    list.reserve(appModel->apps().size());
-    for (const auto& a: appModel->apps()) {
+    const auto apps = appModel->apps();
+    list.reserve(apps.size());
+    for (const auto& a: apps) {
         list.append(QVariant::fromValue<NotifyingApplication>(a));
     }
     config()->setList(QStringLiteral("applications"), list);
diff --git a/plugins/systemvolume/systemvolumeplugin-pulse.cpp b/plugins/systemvolume/systemvolumeplugin-pulse.cpp
--- a/plugins/systemvolume/systemvolumeplugin-pulse.cpp
+++ b/plugins/systemvolume/systemvolumeplugin-pulse.cpp
@@ -74,7 +74,8 @@
 
     sinksMap.clear();
 
-    for (PulseAudioQt::Sink* sink : PulseAudioQt::Context::instance()->sinks()) {
+    const auto sinks = PulseAudioQt::Context::instance()->sinks();
+    for (PulseAudioQt::Sink* sink : sinks) {
         sinksMap.insert(sink->name(), sink);
 
         connect(sink, &PulseAudioQt::Sink::volumeChanged, this, [this, sink] {
@@ -118,7 +119,8 @@
         sendSinkList();
     });
 
-    for (PulseAudioQt::Sink* sink : PulseAudioQt::Context::instance()->sinks()) {
+    const auto sinks = PulseAudioQt::Context::instance()->sinks();
+    for (PulseAudioQt::Sink* sink : sinks) {
         sinksMap.insert(sink->name(), sink);
     }
 }
diff --git a/tests/testsocketlinereader.cpp b/tests/testsocketlinereader.cpp
--- a/tests/testsocketlinereader.cpp
+++ b/tests/testsocketlinereader.cpp
@@ -67,7 +67,7 @@
 {
     QList<QByteArray> dataToSend;
     dataToSend << "foobar\n" << "barfoo\n" << "foobar?\n" << "\n" << "barfoo!\n" << "panda\n";
-    for (const QByteArray& line : dataToSend) {
+    for (const QByteArray& line : qAsConst(dataToSend)) {
         m_conn->write(line);
     }
     m_conn->flush();
diff --git a/tests/testsslsocketlinereader.cpp b/tests/testsslsocketlinereader.cpp
--- a/tests/testsslsocketlinereader.cpp
+++ b/tests/testsslsocketlinereader.cpp
@@ -138,7 +138,7 @@
 
     QList<QByteArray> dataToSend;
     dataToSend << "foobar\n" << "barfoo\n" << "foobar?\n" << "\n" << "barfoo!\n" << "panda\n";
-    for (const QByteArray& line : dataToSend) {
+    for (const QByteArray& line : qAsConst(dataToSend)) {
         m_clientSocket->write(line);
     }
     m_clientSocket->flush();
@@ -197,7 +197,7 @@
 
     QList<QByteArray> dataToSend;
     dataToSend << "foobar\n" << "barfoo\n" << "foobar?\n" << "\n" << "barfoo!\n" << "panda\n";
-    for (const QByteArray& line : dataToSend) {
+    for (const QByteArray& line : qAsConst(dataToSend)) {
             m_clientSocket->write(line);
         }
     m_clientSocket->flush();