diff --git a/src/plugins/debugger/debuggeritemmanager.cpp b/src/plugins/debugger/debuggeritemmanager.cpp
index 96225ac6513..7e853877503 100644
--- a/src/plugins/debugger/debuggeritemmanager.cpp
+++ b/src/plugins/debugger/debuggeritemmanager.cpp
@@ -352,7 +352,7 @@ DebuggerItem DebuggerItemConfigWidget::item() const
     item.setWorkingDirectory(m_workingDirectoryChooser->filePath());
     item.setAutoDetected(m_autodetected);
     Abis abiList;
-    const QStringList abis = m_abis->text().split(QRegExp("[^A-Za-z0-9-_]+"));
+    const QStringList abis = m_abis->text().split(QRegularExpression("[^A-Za-z0-9-_]+"));
     for (const QString &a : abis) {
         if (a.isNull())
             continue;
diff --git a/src/plugins/debugger/debuggerprotocol.cpp b/src/plugins/debugger/debuggerprotocol.cpp
index e7f90806fe2..cc29c5f8249 100644
--- a/src/plugins/debugger/debuggerprotocol.cpp
+++ b/src/plugins/debugger/debuggerprotocol.cpp
@@ -29,7 +29,6 @@
 #include <QDateTime>
 #include <QDebug>
 #include <QHostAddress>
-#include <QRegExp>
 #include <QTimeZone>
 #include <QJsonArray>
 #include <QJsonDocument>
diff --git a/src/plugins/debugger/disassemblerlines.cpp b/src/plugins/debugger/disassemblerlines.cpp
index ed77866ca77..60665fa5e45 100644
--- a/src/plugins/debugger/disassemblerlines.cpp
+++ b/src/plugins/debugger/disassemblerlines.cpp
@@ -28,7 +28,6 @@
 
 #include <QDebug>
 #include <QFile>
-#include <QRegExp>
 #include <QTextStream>
 
 namespace Debugger {
diff --git a/src/plugins/debugger/loadcoredialog.cpp b/src/plugins/debugger/loadcoredialog.cpp
index 550fdc2d204..4c5b7e99885 100644
--- a/src/plugins/debugger/loadcoredialog.cpp
+++ b/src/plugins/debugger/loadcoredialog.cpp
@@ -40,7 +40,6 @@
 #include <QCheckBox>
 #include <QDebug>
 #include <QDir>
-#include <QRegExp>
 
 #include <QDialogButtonBox>
 #include <QFormLayout>