diff --git a/src/model/message.cpp b/src/model/message.cpp
index 3875b437be..74047174ef 100644
--- a/src/model/message.cpp
+++ b/src/model/message.cpp
@@ -44,7 +44,7 @@ QStringList splitMessage(const QString& message, uint64_t maxLength)
 void MessageProcessor::SharedParams::onUserNameSet(const QString& username)
 {
     QString sanename = username;
-    sanename.remove(QRegularExpression("[\\t\\n\\v\\f\\r\\x0000]"));
+    sanename.remove(QRegularExpression(R"([\t\n\v\f\r\x0000])"));
     nameMention = QRegularExpression("\\b" + QRegularExpression::escape(username) + "\\b",
                                      QRegularExpression::CaseInsensitiveOption);
     sanitizedNameMention = QRegularExpression("\\b" + QRegularExpression::escape(sanename) + "\\b",
diff --git a/src/widget/form/settings/aboutform.cpp b/src/widget/form/settings/aboutform.cpp
index 692f8ab762..eb116b7f74 100644
--- a/src/widget/form/settings/aboutform.cpp
+++ b/src/widget/form/settings/aboutform.cpp
@@ -205,8 +205,7 @@ void AboutForm::onUnstableVersion()
  */
 QString AboutForm::createLink(QString path, QString text) const
 {
-    return QString::fromUtf8(
-               "<a href=\"%1\" style=\"text-decoration: underline; color:%2;\">%3</a>")
+    return QString::fromUtf8(R"(<a href="%1" style="text-decoration: underline; color:%2;">%3</a>)")
         .arg(path, style.getColor(Style::ColorPalette::Link).name(), text);
 }
 
diff --git a/src/widget/form/tabcompleter.cpp b/src/widget/form/tabcompleter.cpp
index 97b3c48a91..445230a03b 100644
--- a/src/widget/form/tabcompleter.cpp
+++ b/src/widget/form/tabcompleter.cpp
@@ -50,9 +50,9 @@ void TabCompleter::buildCompletionList()
     // section
     QString tabAbbrev = msgEdit->toPlainText()
                             .left(msgEdit->textCursor().position())
-                            .section(QRegularExpression("[^\\w\\d\\$:@--_\\[\\]{}|`^.\\\\]"), -1, -1);
+                            .section(QRegularExpression(R"([^\w\d\$:@--_\[\]{}|`^.\\])"), -1, -1);
     // that section is then used as the completion regex
-    QRegularExpression regex(QString("^[-_\\[\\]{}|`^.\\\\]*").append(QRegularExpression::escape(tabAbbrev)),
+    QRegularExpression regex(QString(R"(^[-_\[\]{}|`^.\\]*)").append(QRegularExpression::escape(tabAbbrev)),
                              QRegularExpression::CaseInsensitiveOption);
 
     const QString ownNick = group->getSelfName();
diff --git a/src/widget/tool/croppinglabel.cpp b/src/widget/tool/croppinglabel.cpp
index 625081d800..a9881725e0 100644
--- a/src/widget/tool/croppinglabel.cpp
+++ b/src/widget/tool/croppinglabel.cpp
@@ -164,8 +164,7 @@ void CroppingLabel::minimizeMaximumWidth()
 void CroppingLabel::editingFinished()
 {
     hideTextEdit();
-    QString newText =
-        textEdit->text().trimmed().remove(QRegularExpression("[\\t\\n\\v\\f\\r\\x0000]"));
+    QString newText = textEdit->text().trimmed().remove(QRegularExpression(R"([\t\n\v\f\r\x0000])"));
 
     if (origText != newText)
         emit editFinished(textEdit->text());