diff --git a/pytec/pytec/gui/view/ctrl_panel.py b/pytec/pytec/gui/view/ctrl_panel.py
index 0db1643..559ef92 100644
--- a/pytec/pytec/gui/view/ctrl_panel.py
+++ b/pytec/pytec/gui/view/ctrl_panel.py
@@ -168,7 +168,7 @@ class CtrlPanel(QObject):
                             activater[1] = ch
                         await self.thermostat.set_param(*activater)
 
-    @pyqtSlot("QVariantList")
+    @pyqtSlot(list)
     def update_pid(self, pid_settings):
         for settings in pid_settings:
             channel = settings["channel"]
@@ -192,7 +192,7 @@ class CtrlPanel(QObject):
                     "Output Config", "Control Method", "Set Temperature"
                 ).setValue(settings["target"])
 
-    @pyqtSlot("QVariantList")
+    @pyqtSlot(list)
     def update_report(self, report_data):
         for settings in report_data:
             channel = settings["channel"]
@@ -212,7 +212,7 @@ class CtrlPanel(QObject):
                             settings["tec_i"] * 1000
                         )
 
-    @pyqtSlot("QVariantList")
+    @pyqtSlot(list)
     def update_thermistor(self, sh_data):
         for sh_param in sh_data:
             channel = sh_param["channel"]
@@ -227,7 +227,7 @@ class CtrlPanel(QObject):
                     sh_param["params"]["b"]
                 )
 
-    @pyqtSlot("QVariantList")
+    @pyqtSlot(list)
     def update_pwm(self, pwm_data):
         for pwm_params in pwm_data:
             channel = pwm_params["channel"]
@@ -242,7 +242,7 @@ class CtrlPanel(QObject):
                     "Output Config", "Limits", "Max Heating Current"
                 ).setValue(pwm_params["max_i_neg"]["value"] * 1000)
 
-    @pyqtSlot("QVariantList")
+    @pyqtSlot(list)
     def update_postfilter(self, postfilter_data):
         for postfilter_params in postfilter_data:
             channel = postfilter_params["channel"]
diff --git a/pytec/pytec/gui/view/thermostat_settings_menu.py b/pytec/pytec/gui/view/thermostat_settings_menu.py
index 8848fb0..4254423 100644
--- a/pytec/pytec/gui/view/thermostat_settings_menu.py
+++ b/pytec/pytec/gui/view/thermostat_settings_menu.py
@@ -124,7 +124,7 @@ class ThermostatSettingsMenu(QtWidgets.QMenu):
         self.actionAbout_Thermostat.triggered.connect(about_thermostat)
         self.addAction(self.actionAbout_Thermostat)
 
-    @pyqtSlot("QVariantMap")
+    @pyqtSlot(dict)
     def fan_update(self, fan_settings):
         logging.debug(fan_settings)
         if fan_settings is None:
@@ -154,7 +154,7 @@ class ThermostatSettingsMenu(QtWidgets.QMenu):
             self.fan_pwm_warning.setPixmap(QtGui.QPixmap())
             self.fan_pwm_warning.setToolTip("")
 
-    @pyqtSlot("QVariantMap")
+    @pyqtSlot(dict)
     def hw_rev(self, hw_rev):
         self.hw_rev_data = hw_rev
         self.fan_group.setEnabled(self.hw_rev_data["settings"]["fan_available"])
diff --git a/pytec/pytec/gui/view/zero_limits_warning_view.py b/pytec/pytec/gui/view/zero_limits_warning_view.py
index de0e641..116cb3d 100644
--- a/pytec/pytec/gui/view/zero_limits_warning_view.py
+++ b/pytec/pytec/gui/view/zero_limits_warning_view.py
@@ -10,7 +10,7 @@ class ZeroLimitsWarningView(QObject):
         self._lbl = limit_warning
         self._style = style
 
-    @pyqtSlot("QVariantList")
+    @pyqtSlot(list)
     def set_limits_warning(self, pwm_data: list):
         channels_zeroed_limits = [set() for i in range(self._thermostat.NUM_CHANNELS)]