diff --git a/pytec/tec_qt.py b/pytec/tec_qt.py
index cb3957d..d7af6b8 100755
--- a/pytec/tec_qt.py
+++ b/pytec/tec_qt.py
@@ -134,8 +134,8 @@ class MainWindow(QtWidgets.QMainWindow):
         except:
             pass
 
-    @asyncSlot(ThermostatConnectionState)
-    async def _on_connection_changed(self, state):
+    @pyqtSlot(ThermostatConnectionState)
+    def _on_connection_changed(self, state):
         self.graph_group.setEnabled(state == ThermostatConnectionState.CONNECTED)
         self.thermostat_settings.setEnabled(
             state == ThermostatConnectionState.CONNECTED
@@ -160,8 +160,8 @@ class MainWindow(QtWidgets.QMainWindow):
                 self.status_lbl.setText("Disconnected")
                 self.report_box.setChecked(False)
 
-    @asyncSlot(int, PIDAutotuneState)
-    async def pid_autotune_handler(self, _ch, _state):
+    @pyqtSlot(int, PIDAutotuneState)
+    def pid_autotune_handler(self, _ch, _state):
         ch_tuning = []
         for ch in range(self.NUM_CHANNELS):
             if self.autotuners.get_state(ch) in {