diff --git a/src/main.cpp b/src/main.cpp
index 2da9621..273c431 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -180,6 +180,9 @@ int main(int argc, char *argv[])
     }
     int fakeArgc = argc + 2; // QCoreApplication 的 argc 要用引用，避免 c++ 编译器优化
     Application a(fakeArgc, fakeArgs.data());
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+    a.setAttribute(Qt::ApplicationAttribute::AA_UseHighDpiPixmaps);
+#endif // QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     // 设置版本和构建时间
     a.setBuildDateTime(buildDateTime);
 
diff --git a/src/widgets/common/customlabel.cpp b/src/widgets/common/customlabel.cpp
index 27b940e..4c9e51e 100644
--- a/src/widgets/common/customlabel.cpp
+++ b/src/widgets/common/customlabel.cpp
@@ -10,7 +10,11 @@ CustomLabel::CustomLabel(QWidget *parent,
 
 QPixmap CustomLabel::pixmap() const
 {
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     return *QLabel::pixmap();
+#else
+    return QLabel::pixmap();
+#endif // QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 }
 
 void CustomLabel::setPixmap(const QPixmap &pixmap)