diff --git a/jdaviz/configs/specviz/plugins/unit_conversion/unit_conversion.py b/jdaviz/configs/specviz/plugins/unit_conversion/unit_conversion.py
index 58abc018b4..a8f0f3828b 100644
--- a/jdaviz/configs/specviz/plugins/unit_conversion/unit_conversion.py
+++ b/jdaviz/configs/specviz/plugins/unit_conversion/unit_conversion.py
@@ -339,6 +339,9 @@ def _handle_spectral_y_unit(self, *args):
             pass
         else:
             self.spectrum_viewer.set_plot_axes()
+            # until we can have upstream automatic limit updating on change
+            # in display units with equivalencies, we'll reset the limits
+            self.spectrum_viewer.reset_limits()
 
             # broadcast that there has been a change in the spectrum viewer y axis,
             self.hub.broadcast(GlobalDisplayUnitChanged('spectral_y',