diff --git a/src/plugins/texteditor/highlightersettings.cpp b/src/plugins/texteditor/highlightersettings.cpp
index 9fe4744cf78..a048a69575a 100644
--- a/src/plugins/texteditor/highlightersettings.cpp
+++ b/src/plugins/texteditor/highlightersettings.cpp
@@ -172,8 +172,8 @@ void HighlighterSettings::assignDefaultDefinitionsPath()
 
 bool HighlighterSettings::isIgnoredFilePattern(const QString &fileName) const
 {
-    for (const QRegExp &regExp : m_ignoredFiles)
-        if (regExp.indexIn(fileName) != -1)
+    for (const QRegularExpression &regExp : m_ignoredFiles)
+        if (fileName.indexOf(regExp) != -1)
             return true;
 
     return false;
@@ -188,11 +188,10 @@ bool HighlighterSettings::equals(const HighlighterSettings &highlighterSettings)
 void HighlighterSettings::setExpressionsFromList(const QStringList &patterns)
 {
     m_ignoredFiles.clear();
-    QRegExp regExp;
-    regExp.setCaseSensitivity(Qt::CaseInsensitive);
-    regExp.setPatternSyntax(QRegExp::Wildcard);
+    QRegularExpression regExp;
+    regExp.setPatternOptions(QRegularExpression::CaseInsensitiveOption);
     for (const QString &pattern : patterns) {
-        regExp.setPattern(pattern);
+        regExp.setPattern(QRegularExpression::wildcardToRegularExpression(pattern));
         m_ignoredFiles.append(regExp);
     }
 }
@@ -200,7 +199,7 @@ void HighlighterSettings::setExpressionsFromList(const QStringList &patterns)
 QStringList HighlighterSettings::listFromExpressions() const
 {
     QStringList patterns;
-    for (const QRegExp &regExp : m_ignoredFiles)
+    for (const QRegularExpression &regExp : m_ignoredFiles)
         patterns.append(regExp.pattern());
     return patterns;
 }
diff --git a/src/plugins/texteditor/highlightersettings.h b/src/plugins/texteditor/highlightersettings.h
index 16d2eab3184..eaf3f2053b0 100644
--- a/src/plugins/texteditor/highlightersettings.h
+++ b/src/plugins/texteditor/highlightersettings.h
@@ -28,7 +28,7 @@
 #include <QString>
 #include <QStringList>
 #include <QList>
-#include <QRegExp>
+#include <QRegularExpression>
 
 QT_BEGIN_NAMESPACE
 class QSettings;
@@ -61,7 +61,7 @@ private:
     QStringList listFromExpressions() const;
 
     QString m_definitionFilesPath;
-    QList<QRegExp> m_ignoredFiles;
+    QList<QRegularExpression> m_ignoredFiles;
 };
 
 inline bool operator==(const HighlighterSettings &a, const HighlighterSettings &b)
diff --git a/src/plugins/texteditor/texteditor.cpp b/src/plugins/texteditor/texteditor.cpp
index 2c32af5b284..91c44b9d445 100644
--- a/src/plugins/texteditor/texteditor.cpp
+++ b/src/plugins/texteditor/texteditor.cpp
@@ -1836,7 +1836,7 @@ void TextEditorWidget::joinLines()
         QString cutLine = cursor.selectedText();
 
         // Collapse leading whitespaces to one or insert whitespace
-        cutLine.replace(QRegExp(QLatin1String("^\\s*")), QLatin1String(" "));
+        cutLine.replace(QRegularExpression(QLatin1String("^\\s*")), QLatin1String(" "));
         cursor.movePosition(QTextCursor::Right, QTextCursor::KeepAnchor);
         cursor.removeSelectedText();
 
@@ -7123,7 +7123,7 @@ void TextEditorWidget::autoIndent()
 void TextEditorWidget::rewrapParagraph()
 {
     const int paragraphWidth = marginSettings().m_marginColumn;
-    const QRegExp anyLettersOrNumbers = QRegExp(QLatin1String("\\w"));
+    const QRegularExpression anyLettersOrNumbers("\\w");
     const int tabSize = d->m_document->tabSettings().m_tabSize;
 
     QTextCursor cursor = textCursor();