diff --git a/src/App/PropertyGeo.cpp b/src/App/PropertyGeo.cpp
index 6ce4186d76..637b96ce51 100644
--- a/src/App/PropertyGeo.cpp
+++ b/src/App/PropertyGeo.cpp
@@ -589,7 +589,7 @@ double toDouble(const boost::any &value)
 
 void PropertyPlacement::setPathValue(const ObjectIdentifier &path, const boost::any &value)
 {
-    auto updateAxis = [=](int index, double coord) {
+    auto updateAxis = [this](int index, double coord) {
         Base::Vector3d axis;
         double angle;
         Base::Vector3d base = _cPos.getPosition();
@@ -601,7 +601,7 @@ void PropertyPlacement::setPathValue(const ObjectIdentifier &path, const boost::
         setValue(plm);
     };
 
-    auto updateYawPitchRoll = [=](int index, double angle) {
+    auto updateYawPitchRoll = [this](int index, double angle) {
         Base::Vector3d base = _cPos.getPosition();
         Base::Rotation rot = _cPos.getRotation();
         double yaw, pitch, roll;
@@ -1076,7 +1076,7 @@ void PropertyRotation::getPaths(std::vector<ObjectIdentifier> &paths) const
 
 void PropertyRotation::setPathValue(const ObjectIdentifier &path, const boost::any &value)
 {
-    auto updateAxis = [=](int index, double coord) {
+    auto updateAxis = [this](int index, double coord) {
         Base::Vector3d axis;
         double angle;
         _rot.getRawValue(axis, angle);
diff --git a/src/Gui/DlgKeyboardImp.cpp b/src/Gui/DlgKeyboardImp.cpp
index 08f0381c34..f8adcba5b9 100644
--- a/src/Gui/DlgKeyboardImp.cpp
+++ b/src/Gui/DlgKeyboardImp.cpp
@@ -105,7 +105,7 @@ DlgCustomKeyboardImp::DlgCustomKeyboardImp( QWidget* parent  )
     QObject::connect(ui->shortcutTimeout, qOverload<int>(&QSpinBox::valueChanged), timer, [=](int) {
         timer->start(100);
     });
-    QObject::connect(timer, &QTimer::timeout, [=]() {
+    QObject::connect(timer, &QTimer::timeout, [this]() {
         ui->shortcutTimeout->onSave();
     });
 }
diff --git a/src/Gui/DlgSettingsColorGradientImp.cpp b/src/Gui/DlgSettingsColorGradientImp.cpp
index d062cac461..b6d817ac0d 100644
--- a/src/Gui/DlgSettingsColorGradientImp.cpp
+++ b/src/Gui/DlgSettingsColorGradientImp.cpp
@@ -195,7 +195,7 @@ bool DlgSettingsColorGradientImp::isOutInvisible() const
 
 void DlgSettingsColorGradientImp::setRange(float fMin, float fMax)
 {
-    auto toString = [=](float value, int decimals) {
+    auto toString = [this](float value, int decimals) {
         int pos = 0;
         while (decimals > 0) {
             QString str = QLocale().toString(value, 'g', decimals--);
diff --git a/src/Gui/PreferencePages/DlgSettingsUI.cpp b/src/Gui/PreferencePages/DlgSettingsUI.cpp
index f9252436e2..c73ac98022 100644
--- a/src/Gui/PreferencePages/DlgSettingsUI.cpp
+++ b/src/Gui/PreferencePages/DlgSettingsUI.cpp
@@ -654,7 +654,7 @@ void DlgSettingsUI::init()
     QObject::connect(DockOverlayAnimationCurve, QOverload<int>::of(&QComboBox::currentIndexChanged),
                      this, &DlgSettingsUI::onCurveChange);
 
-    QObject::connect(timer, &QTimer::timeout, [=]() {
+    QObject::connect(timer, &QTimer::timeout, [this]() {
         if (animator1->state() != QAbstractAnimation::Running) {
             this->setOffset1(1);
             this->a1 = this->b1 = 0;
diff --git a/src/Gui/QuantitySpinBox.cpp b/src/Gui/QuantitySpinBox.cpp
index 3d9dec3a29..c9f50a0e0c 100644
--- a/src/Gui/QuantitySpinBox.cpp
+++ b/src/Gui/QuantitySpinBox.cpp
@@ -546,7 +546,7 @@ void QuantitySpinBox::openFormulaDialog()
     if (d->checkRangeInExpression) {
         box->setRange(d->minimum, d->maximum);
     }
-    QObject::connect(box, &Gui::Dialog::DlgExpressionInput::finished, [=]() {
+    QObject::connect(box, &Gui::Dialog::DlgExpressionInput::finished, [this, box]() {
         if (box->result() == QDialog::Accepted)
             setExpression(box->getExpression());
         else if (box->discardedFormula())
diff --git a/src/Gui/SpinBox.cpp b/src/Gui/SpinBox.cpp
index 85113b3df2..fd92a3f3a3 100644
--- a/src/Gui/SpinBox.cpp
+++ b/src/Gui/SpinBox.cpp
@@ -52,7 +52,7 @@ ExpressionSpinBox::ExpressionSpinBox(QAbstractSpinBox* sb)
 {
     lineedit = spinbox->findChild<QLineEdit*>();
     makeLabel(lineedit);
-    QObject::connect(iconLabel, &ExpressionLabel::clicked, [=]() {
+    QObject::connect(iconLabel, &ExpressionLabel::clicked, [this]() {
         this->openFormulaDialog();
     });
 }
@@ -183,7 +183,7 @@ void ExpressionSpinBox::openFormulaDialog()
         unit = qprop->getUnit();
 
     auto box = new Gui::Dialog::DlgExpressionInput(getPath(), getExpression(), unit, spinbox);
-    QObject::connect(box, &Gui::Dialog::DlgExpressionInput::finished, [=]() {
+    QObject::connect(box, &Gui::Dialog::DlgExpressionInput::finished, [this, box]() {
         if (box->result() == QDialog::Accepted)
             setExpression(box->getExpression());
         else if (box->discardedFormula())
diff --git a/src/Gui/Tree.cpp b/src/Gui/Tree.cpp
index c6fba06b3e..0f74fbd49e 100644
--- a/src/Gui/Tree.cpp
+++ b/src/Gui/Tree.cpp
@@ -5050,7 +5050,7 @@ void DocumentObjectItem::restoreBackground() {
 
 void DocumentObjectItem::setHighlight(bool set, Gui::HighlightMode high) {
     QFont f = this->font(0);
-    auto highlight = [=](const QColor& col) {
+    auto highlight = [this, set](const QColor& col) {
         if (set)
             this->setBackground(0, col);
         else
diff --git a/src/Gui/Widgets.cpp b/src/Gui/Widgets.cpp
index c12b70bbd5..0692f97765 100644
--- a/src/Gui/Widgets.cpp
+++ b/src/Gui/Widgets.cpp
@@ -1714,7 +1714,7 @@ ButtonGroup::ButtonGroup(QObject *parent)
     QButtonGroup::setExclusive(false);
 
     connect(this, qOverload<QAbstractButton *>(&QButtonGroup::buttonClicked),
-            [=](QAbstractButton *button) {
+            [this](QAbstractButton *button) {
         if (exclusive()) {
             const auto btns = buttons();
             for (auto btn : btns) {
diff --git a/src/Mod/Fem/Gui/TaskFemConstraintBearing.cpp b/src/Mod/Fem/Gui/TaskFemConstraintBearing.cpp
index deedc32b87..7dba042486 100644
--- a/src/Mod/Fem/Gui/TaskFemConstraintBearing.cpp
+++ b/src/Mod/Fem/Gui/TaskFemConstraintBearing.cpp
@@ -108,10 +108,10 @@ TaskFemConstraintBearing::TaskFemConstraintBearing(ViewProviderFemConstraint* Co
             qOverload<double>(&QDoubleSpinBox::valueChanged),
             this,
             &TaskFemConstraintBearing::onDistanceChanged);
-    connect(ui->buttonReference, &QPushButton::pressed, this, [=] {
+    connect(ui->buttonReference, &QPushButton::pressed, this, [this] {
         onButtonReference(true);
     });
-    connect(ui->buttonLocation, &QPushButton::pressed, this, [=] {
+    connect(ui->buttonLocation, &QPushButton::pressed, this, [this] {
         onButtonLocation(true);
     });
     connect(ui->checkAxial, &QCheckBox::toggled, this, &TaskFemConstraintBearing::onCheckAxial);
diff --git a/src/Mod/Fem/Gui/TaskFemConstraintFluidBoundary.cpp b/src/Mod/Fem/Gui/TaskFemConstraintFluidBoundary.cpp
index 58fc8bc491..3410a64839 100644
--- a/src/Mod/Fem/Gui/TaskFemConstraintFluidBoundary.cpp
+++ b/src/Mod/Fem/Gui/TaskFemConstraintFluidBoundary.cpp
@@ -179,7 +179,7 @@ TaskFemConstraintFluidBoundary::TaskFemConstraintFluidBoundary(
             this,
             &TaskFemConstraintFluidBoundary::onThermalBoundaryTypeChanged);
 
-    connect(ui->buttonDirection, &QPushButton::pressed, this, [=] {
+    connect(ui->buttonDirection, &QPushButton::pressed, this, [this] {
         onButtonDirection(true);
     });
     connect(ui->checkReverse,
diff --git a/src/Mod/Fem/Gui/TaskFemConstraintGear.cpp b/src/Mod/Fem/Gui/TaskFemConstraintGear.cpp
index f815e5d994..e74b863127 100644
--- a/src/Mod/Fem/Gui/TaskFemConstraintGear.cpp
+++ b/src/Mod/Fem/Gui/TaskFemConstraintGear.cpp
@@ -62,7 +62,7 @@ TaskFemConstraintGear::TaskFemConstraintGear(ViewProviderFemConstraint* Constrai
             qOverload<double>(&QDoubleSpinBox::valueChanged),
             this,
             &TaskFemConstraintGear::onForceAngleChanged);
-    connect(ui->buttonDirection, &QPushButton::pressed, this, [=] {
+    connect(ui->buttonDirection, &QPushButton::pressed, this, [this] {
         onButtonDirection(true);
     });
     connect(ui->checkReversed, &QCheckBox::toggled, this, &TaskFemConstraintGear::onCheckReversed);
diff --git a/src/Mod/Import/App/dxf/ImpExpDxf.cpp b/src/Mod/Import/App/dxf/ImpExpDxf.cpp
index dbe6882acc..d1f12f99f9 100644
--- a/src/Mod/Import/App/dxf/ImpExpDxf.cpp
+++ b/src/Mod/Import/App/dxf/ImpExpDxf.cpp
@@ -420,7 +420,7 @@ void ImpExpDxfRead::OnReadText(const Base::Vector3d& point,
     // Note that our parameters do not contain all the information needed to properly orient the
     // text. As a result the text will always appear on the XY plane
     if (m_importAnnotations) {
-        auto makeText = [=](const Base::Matrix4D& transform) -> App::FeaturePython* {
+        auto makeText = [this, rotation, point, text, height](const Base::Matrix4D& transform) -> App::FeaturePython* {
             PyObject* draftModule = getDraftModule();
             if (draftModule != nullptr) {
                 Base::Matrix4D localTransform;
@@ -537,7 +537,7 @@ void ImpExpDxfRead::OnReadDimension(const Base::Vector3d& start,
                                     double /*rotation*/)
 {
     if (m_importAnnotations) {
-        auto makeDimension = [=](const Base::Matrix4D& transform) -> App::FeaturePython* {
+        auto makeDimension = [this, start, end, point](const Base::Matrix4D& transform) -> App::FeaturePython* {
             PyObject* draftModule = getDraftModule();
             if (draftModule != nullptr) {
                 // TODO: Capture and apply OCSOrientationTransform to OCS coordinates
diff --git a/src/Mod/PartDesign/Gui/TaskShapeBinder.cpp b/src/Mod/PartDesign/Gui/TaskShapeBinder.cpp
index 24fd6ebfe2..eb969ce942 100644
--- a/src/Mod/PartDesign/Gui/TaskShapeBinder.cpp
+++ b/src/Mod/PartDesign/Gui/TaskShapeBinder.cpp
@@ -229,7 +229,7 @@ void TaskShapeBinder::removeFromListWidget(QListWidget* widget, QString itemstr)
 
 void TaskShapeBinder::onSelectionChanged(const Gui::SelectionChanges& msg)
 {
-    auto setObjectLabel = [=](const Gui::SelectionChanges& msg) {
+    auto setObjectLabel = [this](const Gui::SelectionChanges& msg) {
         App::DocumentObject* obj = msg.Object.getObject();
         if (obj) {
             ui->baseEdit->setText(QString::fromStdString(obj->Label.getStrValue()));
diff --git a/src/Mod/Sketcher/Gui/DrawSketchController.h b/src/Mod/Sketcher/Gui/DrawSketchController.h
index 03906081a8..2ee429f65c 100644
--- a/src/Mod/Sketcher/Gui/DrawSketchController.h
+++ b/src/Mod/Sketcher/Gui/DrawSketchController.h
@@ -587,7 +587,7 @@ protected:
                                      /*avoidMouseCursor = */ true))
                                  .get();
 
-            QObject::connect(parameter, &Gui::EditableDatumLabel::valueChanged, [=](double value) {
+            QObject::connect(parameter, &Gui::EditableDatumLabel::valueChanged, [this, parameter, i](double value) {
                 parameter->setColor(colorManager.dimConstrColor);
                 onViewValueChanged(i, value);
             });
diff --git a/src/Mod/TechDraw/Gui/TaskProjGroup.cpp b/src/Mod/TechDraw/Gui/TaskProjGroup.cpp
index d2cc2638bb..043810c0f7 100644
--- a/src/Mod/TechDraw/Gui/TaskProjGroup.cpp
+++ b/src/Mod/TechDraw/Gui/TaskProjGroup.cpp
@@ -108,7 +108,7 @@ TaskProjGroup::TaskProjGroup(TechDraw::DrawProjGroup* featView, bool mode) :
 #if QT_VERSION < QT_VERSION_CHECK(5,15,0)
     connect(ui->projection, qOverload<const QString&>(&QComboBox::currentIndexChanged), this, &TaskProjGroup::projectionTypeChanged);
 #else
-    connect(ui->projection, qOverload<int>(&QComboBox::currentIndexChanged), this, [=](int index) {
+    connect(ui->projection, qOverload<int>(&QComboBox::currentIndexChanged), this, [this](int index) {
         projectionTypeChanged(ui->projection->itemText(index));
     });
 #endif
diff --git a/src/Mod/TechDraw/Gui/mrichtextedit.cpp b/src/Mod/TechDraw/Gui/mrichtextedit.cpp
index 813ae665fc..97f18639db 100644
--- a/src/Mod/TechDraw/Gui/mrichtextedit.cpp
+++ b/src/Mod/TechDraw/Gui/mrichtextedit.cpp
@@ -210,7 +210,7 @@ MRichTextEdit::MRichTextEdit(QWidget *parent, QString textIn) : QWidget(parent)
     connect(f_fontsize, qOverload<const QString&>(&QComboBox::currentIndexChanged),
             this, &MRichTextEdit::textSize);
 #else
-    connect(f_fontsize, qOverload<int>(&QComboBox::currentIndexChanged), this, [=](int index) {
+    connect(f_fontsize, qOverload<int>(&QComboBox::currentIndexChanged), this, [this](int index) {
         textSize(f_fontsize->itemText(index));
     });
 #endif