diff --git a/answer-store b/answer-store
index 64303a06913..073b4d3e4f3 160000
--- a/answer-store
+++ b/answer-store
@@ -1 +1 @@
-Subproject commit 64303a0691388c8c1ad8142144a40de6fc4881b7
+Subproject commit 073b4d3e4f3894f64ddd97c9e21214059e73f700
diff --git a/yt/visualization/plot_container.py b/yt/visualization/plot_container.py
index 96591a5c72b..732a8944efa 100644
--- a/yt/visualization/plot_container.py
+++ b/yt/visualization/plot_container.py
@@ -796,7 +796,10 @@ def _get_axes_unit_labels(self, unit_x, unit_y):
                         symbol_wo_prefix = un[1:]
                         if symbol_wo_prefix in self.ds.unit_registry.prefixable_units:
                             un = un.replace(pp, "{" + latex_prefixes[pp] + "}", 1)
-                axes_unit_labels[i] = r"\ \ (" + un + ")"
+                if r"\frac" in un:
+                    axes_unit_labels[i] = r"\ \ \left(" + un + r"\right)"
+                else:
+                    axes_unit_labels[i] = r"\ \ (" + un + r")"
         return axes_unit_labels
 
     def hide_colorbar(self, field=None):