diff --git a/Source/Core/DolphinQt/Config/GameConfigEdit.cpp b/Source/Core/DolphinQt/Config/GameConfigEdit.cpp
index b4ca822d1d..396d466657 100644
--- a/Source/Core/DolphinQt/Config/GameConfigEdit.cpp
+++ b/Source/Core/DolphinQt/Config/GameConfigEdit.cpp
@@ -11,6 +11,7 @@
 #include <QMenu>
 #include <QMenuBar>
 #include <QPushButton>
+#include <QRegularExpression>
 #include <QScrollBar>
 #include <QStringListModel>
 #include <QTextCursor>
@@ -161,7 +162,7 @@ void GameConfigEdit::AddBoolOption(QMenu* menu, const QString& name, const QStri
 void GameConfigEdit::SetOption(const QString& section, const QString& key, const QString& value)
 {
   auto section_cursor =
-      m_edit->document()->find(QRegExp(QStringLiteral("^\\[%1\\]").arg(section)), 0);
+      m_edit->document()->find(QRegularExpression(QStringLiteral("^\\[%1\\]").arg(section)), 0);
 
   // Check if the section this belongs in can be found
   if (section_cursor.isNull())
@@ -170,8 +171,8 @@ void GameConfigEdit::SetOption(const QString& section, const QString& key, const
   }
   else
   {
-    auto value_cursor =
-        m_edit->document()->find(QRegExp(QStringLiteral("^%1 = .*").arg(key)), section_cursor);
+    auto value_cursor = m_edit->document()->find(
+        QRegularExpression(QStringLiteral("^%1 = .*").arg(key)), section_cursor);
 
     const QString new_line = QStringLiteral("%1 = %2").arg(key).arg(value);
 
diff --git a/Source/Core/DolphinQt/Config/Mapping/MappingCommon.cpp b/Source/Core/DolphinQt/Config/Mapping/MappingCommon.cpp
index eb61963300..3678cceb89 100644
--- a/Source/Core/DolphinQt/Config/Mapping/MappingCommon.cpp
+++ b/Source/Core/DolphinQt/Config/Mapping/MappingCommon.cpp
@@ -9,7 +9,7 @@
 
 #include <QApplication>
 #include <QPushButton>
-#include <QRegExp>
+#include <QRegularExpression>
 #include <QString>
 #include <QTimer>
 
@@ -51,8 +51,8 @@ QString GetExpressionForControl(const QString& control_name,
 
   if (quote == Quote::On)
   {
-    QRegExp reg(QStringLiteral("[a-zA-Z]+"));
-    if (!reg.exactMatch(expr))
+    const QRegularExpression reg(QStringLiteral("[a-zA-Z]+"));
+    if (!reg.match(expr).hasMatch())
       expr = QStringLiteral("`%1`").arg(expr);
   }
 
diff --git a/Source/Core/DolphinQt/GameList/GameListModel.cpp b/Source/Core/DolphinQt/GameList/GameListModel.cpp
index d470bf3b37..ee3031fb47 100644
--- a/Source/Core/DolphinQt/GameList/GameListModel.cpp
+++ b/Source/Core/DolphinQt/GameList/GameListModel.cpp
@@ -7,6 +7,7 @@
 #include <QDir>
 #include <QFileInfo>
 #include <QPixmap>
+#include <QRegularExpression>
 
 #include "Core/ConfigManager.h"
 
@@ -96,7 +97,8 @@ QVariant GameListModel::data(const QModelIndex& index, int role) const
       const int disc_nr = game.GetDiscNumber() + 1;
       if (disc_nr > 1)
       {
-        if (!name.contains(QRegExp(QStringLiteral("disc ?%1").arg(disc_nr), Qt::CaseInsensitive)))
+        if (!name.contains(QRegularExpression(QStringLiteral("disc ?%1").arg(disc_nr),
+                                              QRegularExpression::CaseInsensitiveOption)))
         {
           name.append(tr(" (Disc %1)").arg(disc_nr));
         }
@@ -107,11 +109,14 @@ QVariant GameListModel::data(const QModelIndex& index, int role) const
       {
         constexpr int MAX_NUMBER_LENGTH = 10;
 
-        QRegExp rx(QStringLiteral("\\d+"));
+        const QRegularExpression rx(QStringLiteral("\\d+"));
+        QRegularExpressionMatch match;
         int pos = 0;
-        while ((pos = rx.indexIn(name, pos)) != -1)
+        while ((match = rx.match(name, pos)).hasMatch())
         {
-          name.replace(pos, rx.matchedLength(), rx.cap().rightJustified(MAX_NUMBER_LENGTH));
+          pos = match.capturedStart();
+          name.replace(pos, match.capturedLength(),
+                       match.captured().rightJustified(MAX_NUMBER_LENGTH));
           pos += MAX_NUMBER_LENGTH;
         }
       }