4 files changed, 10 insertions, 10 deletions
diff --git a/cppuhelper/source/implbase_ex.cxx b/cppuhelper/source/implbase_ex.cxx
index 24b7a74582d7..4ced30adbe5c 100644
--- a/cppuhelper/source/implbase_ex.cxx
+++ b/cppuhelper/source/implbase_ex.cxx
@@ -68,7 +68,7 @@ static type_entry * getTypeEntries( class_data * cd )
     if (! cd->m_storedTypeRefs) // not inited?
     {
         static std::mutex aMutex;
-        std::lock_guard guard( aMutex );
+        std::scoped_lock guard( aMutex );
         if (! cd->m_storedTypeRefs) // not inited?
         {
             // get all types
diff --git a/cppuhelper/source/propertysetmixin.cxx b/cppuhelper/source/propertysetmixin.cxx
index 0a270db6f17e..41f9442ff311 100644
--- a/cppuhelper/source/propertysetmixin.cxx
+++ b/cppuhelper/source/propertysetmixin.cxx
@@ -853,7 +853,7 @@ void PropertySetMixinImpl::prepareSet(
     Impl::VetoListenerBag specificVeto;
     Impl::VetoListenerBag unspecificVeto;
     {
-        std::lock_guard g(m_impl->mutex);
+        std::scoped_lock g(m_impl->mutex);
         if (m_impl->disposed) {
             throw css::lang::DisposedException(
                 "disposed", static_cast< css::beans::XPropertySet * >(this));
@@ -922,7 +922,7 @@ void PropertySetMixinImpl::dispose() {
     Impl::BoundListenerMap boundListeners;
     Impl::VetoListenerMap vetoListeners;
     {
-        std::lock_guard g(m_impl->mutex);
+        std::scoped_lock g(m_impl->mutex);
         boundListeners.swap(m_impl->boundListeners);
         vetoListeners.swap(m_impl->vetoListeners);
         m_impl->disposed = true;
@@ -1001,7 +1001,7 @@ void PropertySetMixinImpl::addPropertyChangeListener(
     checkUnknown(propertyName);
     bool disposed;
     {
-        std::lock_guard g(m_impl->mutex);
+        std::scoped_lock g(m_impl->mutex);
         disposed = m_impl->disposed;
         if (!disposed) {
             m_impl->boundListeners[propertyName].insert(listener);
@@ -1020,7 +1020,7 @@ void PropertySetMixinImpl::removePropertyChangeListener(
 {
     assert(listener.is());
     checkUnknown(propertyName);
-    std::lock_guard g(m_impl->mutex);
+    std::scoped_lock g(m_impl->mutex);
     Impl::BoundListenerMap::iterator i(
         m_impl->boundListeners.find(propertyName));
     if (i != m_impl->boundListeners.end()) {
@@ -1040,7 +1040,7 @@ void PropertySetMixinImpl::addVetoableChangeListener(
     checkUnknown(propertyName);
     bool disposed;
     {
-        std::lock_guard g(m_impl->mutex);
+        std::scoped_lock g(m_impl->mutex);
         disposed = m_impl->disposed;
         if (!disposed) {
             m_impl->vetoListeners[propertyName].insert(listener);
@@ -1059,7 +1059,7 @@ void PropertySetMixinImpl::removeVetoableChangeListener(
 {
     assert(listener.is());
     checkUnknown(propertyName);
-    std::lock_guard g(m_impl->mutex);
+    std::scoped_lock g(m_impl->mutex);
     Impl::VetoListenerMap::iterator i(m_impl->vetoListeners.find(propertyName));
     if (i != m_impl->vetoListeners.end()) {
         Impl::VetoListenerBag::iterator j(i->second.find(listener));
diff --git a/cppuhelper/source/servicemanager.cxx b/cppuhelper/source/servicemanager.cxx
index bf8e13fcc53e..6cabae88f0dc 100644
--- a/cppuhelper/source/servicemanager.cxx
+++ b/cppuhelper/source/servicemanager.cxx
@@ -470,13 +470,13 @@ private:
 
 sal_Bool ContentEnumeration::hasMoreElements()
 {
-    std::lock_guard g(mutex_);
+    std::scoped_lock g(mutex_);
     return iterator_ != factories_.end();
 }
 
 css::uno::Any ContentEnumeration::nextElement()
 {
-    std::lock_guard g(mutex_);
+    std::scoped_lock g(mutex_);
     if (iterator_ == factories_.end()) {
         throw css::container::NoSuchElementException(
             "Bootstrap service manager service enumerator has no more elements",
diff --git a/cppuhelper/source/typemanager.cxx b/cppuhelper/source/typemanager.cxx
index b97d36d16aed..12c25ddc92bc 100644
--- a/cppuhelper/source/typemanager.cxx
+++ b/cppuhelper/source/typemanager.cxx
@@ -1679,7 +1679,7 @@ Enumeration::nextTypeDescription()
 {
     OUString name;
     {
-        std::lock_guard g(mutex_);
+        std::scoped_lock g(mutex_);
         if (positions_.empty()) {
             throw css::container::NoSuchElementException(
                 "exhausted XTypeDescriptionEnumeration",