diff --git a/CMakeLists.txt b/CMakeLists.txt
index c3019e1..1f558aa 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,7 +6,7 @@ set(CMAKE_AUTOMOC ON)
 
 set(CMAKE_CXX_STANDARD 17)
 
-find_package(Qt6 COMPONENTS Core Widgets Network CONFIG REQUIRED)
+find_package(Qt5 COMPONENTS Core Widgets Network CONFIG REQUIRED)
 
 add_subdirectory(external)
 
@@ -19,7 +19,7 @@ add_executable(xivlauncher
         src/settingswindow.cpp
         src/blowfish.cpp)
 
-target_link_libraries(xivlauncher Qt6::Core Qt6::Widgets Qt6::Network qt6keychain)
+target_link_libraries(xivlauncher Qt5::Core Qt5::Widgets Qt5::Network qt5keychain)
 
 # disgusting, thanks qtkeychain
 target_include_directories(xivlauncher PRIVATE
diff --git a/external/CMakeLists.txt b/external/CMakeLists.txt
index c84c545..7a18dbc 100644
--- a/external/CMakeLists.txt
+++ b/external/CMakeLists.txt
@@ -6,7 +6,7 @@ FetchContent_Declare(
         GIT_TAG        v0.12.0
 )
 
-set(BUILD_WITH_QT6 ON CACHE BOOL "" FORCE)
+set(BUILD_WITH_QT6 OFF CACHE BOOL "" FORCE)
 set(QTKEYCHAIN_STATIC ON CACHE BOOL "" FORCE)
 
 FetchContent_MakeAvailable(qtkeychain)
\ No newline at end of file
diff --git a/src/settingswindow.cpp b/src/settingswindow.cpp
index d667576..dbd3595 100644
--- a/src/settingswindow.cpp
+++ b/src/settingswindow.cpp
@@ -64,7 +64,7 @@ SettingsWindow::SettingsWindow(LauncherWindow& window, QWidget* parent) : window
     directXCombo->addItem("DirectX 9");
     gameBoxLayout->addRow("DirectX Version", directXCombo);
 
-    connect(directXCombo, &QComboBox::currentIndexChanged, [=](int index) {
+    connect(directXCombo, static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged), [=](int index) {
         getCurrentProfile().useDX9 = directXCombo->currentIndex() == 1;
         this->window.saveSettings();
     });
@@ -109,7 +109,7 @@ SettingsWindow::SettingsWindow(LauncherWindow& window, QWidget* parent) : window
     serverType->insertItem(0, "Square Enix");
     serverType->insertItem(1, "Sapphire");
 
-    connect(serverType, &QComboBox::currentIndexChanged, [=](int index) {
+    connect(serverType, static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged), [=](int index) {
         getCurrentProfile().isSapphire = index == 1;
 
         reloadControls();
@@ -174,7 +174,7 @@ SettingsWindow::SettingsWindow(LauncherWindow& window, QWidget* parent) : window
     selectWineButton = new QPushButton("Select Wine Executable");
     wineBoxLayout->addWidget(selectWineButton);
 
-    connect(wineVersionCombo, &QComboBox::currentIndexChanged, [this](int index) {
+    connect(wineVersionCombo, static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged), [this](int index) {
         getCurrentProfile().wineVersion = index;
 
         this->window.readWineInfo(getCurrentProfile());
diff --git a/src/xivlauncher.cpp b/src/xivlauncher.cpp
index 16b5487..049ba6c 100755
--- a/src/xivlauncher.cpp
+++ b/src/xivlauncher.cpp
@@ -43,7 +43,7 @@ void LauncherWindow::setSSL(QNetworkRequest& request) {
 void LauncherWindow::buildRequest(QNetworkRequest& request) {
     setSSL(request);
     request.setHeader(QNetworkRequest::UserAgentHeader,
-                      QString("SQEXAuthor/2.0.0(Windows 6.2; ja-jp; %1)").arg(QSysInfo::bootUniqueId()));
+                      QString("SQEXAuthor/2.0.0(Windows 6.2; ja-jp; %1)").arg(QString(QSysInfo::bootUniqueId())));
     request.setRawHeader("Accept",
                          "image/gif, image/jpeg, image/pjpeg, application/x-ms-application, application/xaml+xml, application/x-ms-xbap, */*");
     request.setRawHeader("Accept-Encoding", "gzip, deflate");
@@ -366,7 +366,7 @@ LauncherWindow::LauncherWindow(QWidget* parent) :
     auto layout = new QFormLayout();
 
     profileSelect = new QComboBox();
-    connect(profileSelect, &QComboBox::currentIndexChanged, [=](int index) {
+    connect(profileSelect, static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged), [=](int index) {
         reloadControls();
     });
 
diff --git a/src/xivlauncher.h b/src/xivlauncher.h
index d7bf784..d2eea85 100755
--- a/src/xivlauncher.h
+++ b/src/xivlauncher.h
@@ -105,6 +105,6 @@ private:
     QCheckBox* rememberUsernameBox, *rememberPasswordBox;
     QPushButton* registerButton;
 
-    QList<ProfileSettings> profileSettings;
+    QVector<ProfileSettings> profileSettings;
     int defaultProfileIndex = 0;
 };