diff --git a/glue_jupyter/bqplot/image/layer_artist.py b/glue_jupyter/bqplot/image/layer_artist.py
index 3567d3e7..7a546872 100644
--- a/glue_jupyter/bqplot/image/layer_artist.py
+++ b/glue_jupyter/bqplot/image/layer_artist.py
@@ -98,7 +98,7 @@ def _update_contour_lines(self):
         contour_data = converter.to_unit(self.state.layer,
                                          self.state.attribute,
                                          contour_data,
-                                         self.state.c_display_unit)
+                                         self.state.attribute_display_unit)
 
         for level in self.state.levels:
             if level not in self._contour_line_cache:
diff --git a/glue_jupyter/bqplot/image/state.py b/glue_jupyter/bqplot/image/state.py
index edbf5a98..24431700 100644
--- a/glue_jupyter/bqplot/image/state.py
+++ b/glue_jupyter/bqplot/image/state.py
@@ -20,7 +20,6 @@ class BqplotImageViewerState(ImageViewerState):
 class BqplotImageLayerState(ImageLayerState):
     c_min = DDCProperty(docstring='The lower level used for the contours')
     c_max = DDCProperty(docstring='The upper level used for the contours')
-    c_display_unit = DDSCProperty(docstring='The units to use to display contour levels')
     level_mode = DDSCProperty(0, docstring='How to distribute the contour levels')
     n_levels = DDCProperty(5, docstring='The number of levels, in Linear mode')
     levels = CallbackProperty(docstring='List of values where to create the contour lines')
@@ -56,17 +55,13 @@ def format_unit(unit):
             else:
                 return unit
 
-        BqplotImageLayerState.c_display_unit.set_display_func(self, format_unit)
-
         self.add_callback('n_levels', self._update_levels)
         self.add_callback('c_min', self._update_levels)
         self.add_callback('c_max', self._update_levels)
         self.add_callback('level_mode', self._update_levels)
         self.add_callback('levels', self._update_labels)
-        self.add_callback('attribute', self._update_c_display_unit_choices)
-        self.add_callback('c_display_unit', self._convert_units_c_limits, echo_old=True)
+        self.add_callback('attribute_display_unit', self._convert_units_c_limits, echo_old=True)
 
-        self._update_c_display_unit_choices()
         self._update_levels()
 
     def _update_priority(self, name):
@@ -86,20 +81,6 @@ def _update_labels(self, ignore=None):
         # TODO: we may want to have ways to configure this in the future
         self.labels = ["{0:.4g}".format(level) for level in self.levels]
 
-    def _update_c_display_unit_choices(self, *args):
-
-        if self.layer is None:
-            BqplotImageLayerState.c_display_unit.set_choices(self, [])
-            return
-
-        component = self.layer.get_component(self.attribute)
-        if component.units:
-            c_choices = find_unit_choices([(self.layer, self.attribute, component.units)])
-        else:
-            c_choices = ['']
-        BqplotImageLayerState.c_display_unit.set_choices(self, c_choices)
-        self.c_display_unit = component.units
-
     def _convert_units_c_limits(self, old_unit, new_unit):
 
         if (
diff --git a/glue_jupyter/bqplot/image/tests/test_visual.py b/glue_jupyter/bqplot/image/tests/test_visual.py
index 29203974..3ef57110 100644
--- a/glue_jupyter/bqplot/image/tests/test_visual.py
+++ b/glue_jupyter/bqplot/image/tests/test_visual.py
@@ -29,7 +29,7 @@ def test_contour_units(
 
     assert_allclose(image.state.layers[0].levels, [0.1, 0.3, 0.5, 0.7, 0.9])
 
-    image.state.layers[0].c_display_unit = 'm'
+    image.state.layers[0].attribute_display_unit = 'm'
 
     assert_allclose(image.state.layers[0].levels, [100, 300, 500, 700, 900])
     assert image.state.layers[0].labels == ['100', '300', '500', '700', '900']
diff --git a/setup.cfg b/setup.cfg
index 74f4df05..e141b06f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -14,7 +14,7 @@ python_requires = >=3.8
 setup_requires =
   setuptools_scm
 install_requires =
-    glue-core>=1.17.1
+    glue-core>=1.19.0
     glue-vispy-viewers>=1.0
     notebook>=4.0
     ipympl>=0.3.0
@@ -33,7 +33,6 @@ test =
     pytest
     pytest-cov
     nbconvert>=6.4.5
-    glue-core!=1.2.4; python_version == '3.10'
 visualtest =
     playwright
     pytest-playwright