diff --git a/src/runner/pythonRunner.pro b/src/runner/pythonRunner.pro
index 55c509b..fee3b5e 100644
--- a/src/runner/pythonRunner.pro
+++ b/src/runner/pythonRunner.pro
@@ -42,7 +42,7 @@ CONFIG(debug, debug|release) {
   msvc:QMAKE_LFLAGS += /DEBUG
 }
 
-INCLUDEPATH += "$${BOOSTPATH}" "$${PYTHONPATH}/include" "$${PYTHONPATH}/Lib/site-packages/PyQt5/include" ../uibase
+INCLUDEPATH += "$${BOOSTPATH}" "$${PYTHONPATH}/include" "$${PYTHONPATH}/Lib/site-packages/PyQt6/include" ../uibase
 LIBS += -L"$${PYTHONPATH}/libs" -L"$${BOOSTPATH}/stage/lib"
 LIBS += -lpython27
 LIBS += -luibase
diff --git a/src/runner/pythonrunner.cpp b/src/runner/pythonrunner.cpp
index 4c6dc01..8963b4d 100644
--- a/src/runner/pythonrunner.cpp
+++ b/src/runner/pythonrunner.cpp
@@ -67,8 +67,8 @@ BOOST_PYTHON_MODULE(mobase)
 {
   PyEval_InitThreads();
 
-  bpy::import("PyQt5.QtCore");
-  bpy::import("PyQt5.QtWidgets");
+  bpy::import("PyQt6.QtCore");
+  bpy::import("PyQt6.QtWidgets");
 
   utils::register_qstring_converter();
   utils::register_qvariant_converter();
@@ -112,7 +112,7 @@ BOOST_PYTHON_MODULE(mobase)
   utils::register_sequence_container<QList<ExecutableInfo>>();
   utils::register_sequence_container<QList<ExecutableForcedLoadSetting>>();
   utils::register_sequence_container<QList<PluginSetting>>();
-  //utils::register_sequence_container<QList<ModRepositoryFileInfo>>();
+  utils::register_sequence_container<QList<ModRepositoryFileInfo*>>();
   utils::register_sequence_container<QStringList>();
   utils::register_sequence_container<QList<QString>>();
   utils::register_sequence_container<QList<QFileInfo>>();
diff --git a/src/runner/sipapiaccess.cpp b/src/runner/sipapiaccess.cpp
index b2bceee..6d374c3 100644
--- a/src/runner/sipapiaccess.cpp
+++ b/src/runner/sipapiaccess.cpp
@@ -5,5 +5,54 @@
 
 const sipAPIDef* sipAPIAccess::sipAPI()
 {
-    return (const sipAPIDef*)PyCapsule_Import("sip._C_API", 0);
+    QString exception;
+    static const sipAPIDef* sipApi = nullptr;
+    if (sipApi == nullptr) {
+        PyImport_ImportModule("PyQt6.sip");
+
+        auto errorObj = PyErr_Occurred();
+        if (errorObj != NULL) {
+            PyObject* type, * value, * traceback;
+            PyErr_Fetch(&type, &value, &traceback);
+            PyErr_NormalizeException(&type, &value, &traceback);
+            if (traceback != NULL) {
+                boost::python::handle<> h_type(type);
+                boost::python::handle<> h_val(value);
+                boost::python::handle<> h_tb(traceback);
+                boost::python::object tb(boost::python::import("traceback"));
+                boost::python::object fmt_exp(tb.attr("format_exception"));
+                boost::python::object exp_list(fmt_exp(h_type, h_val, h_tb));
+                boost::python::object exp_str(boost::python::str("\n").join(exp_list));
+                boost::python::extract<std::string> returned(exp_str);
+                exception = QString::fromStdString(returned());
+            }
+            PyErr_Restore(type, value, traceback);
+            throw MOBase::Exception(QString("Failed to load PyQt6: %1").arg(exception));
+        }
+
+        sipApi = (const sipAPIDef*)PyCapsule_Import("PyQt6.sip._C_API", 0);
+        if (sipApi == NULL) {
+            auto errorObj = PyErr_Occurred();
+            if (errorObj != NULL) {
+                PyObject* type, * value, * traceback;
+                PyErr_Fetch(&type, &value, &traceback);
+                PyErr_NormalizeException(&type, &value, &traceback);
+                if (traceback != NULL) {
+                    boost::python::handle<> h_type(type);
+                    boost::python::handle<> h_val(value);
+                    boost::python::handle<> h_tb(traceback);
+                    boost::python::object tb(boost::python::import("traceback"));
+                    boost::python::object fmt_exp(tb.attr("format_exception"));
+                    boost::python::object exp_list(fmt_exp(h_type, h_val, h_tb));
+                    boost::python::object exp_str(boost::python::str("\n").join(exp_list));
+                    boost::python::extract<std::string> returned(exp_str);
+                    exception = QString::fromStdString(returned());
+                }
+                PyErr_Restore(type, value, traceback);
+            }
+            throw MOBase::Exception(QString("Failed to load SIP API: %1").arg(exception));
+        }
+    }
+
+    return sipApi;
 }
\ No newline at end of file