diff --git a/lib/matplotlib/axis.py b/lib/matplotlib/axis.py
index f9aaafc66ddc..bfad4440c09b 100644
--- a/lib/matplotlib/axis.py
+++ b/lib/matplotlib/axis.py
@@ -1766,10 +1766,10 @@ def set_ticklabels(self, ticklabels, *, minor=False, **kwargs):
             tick_label = formatter(loc, pos)
             # deal with label1
             tick.label1.set_text(tick_label)
-            tick.label1.update(kwargs)
+            tick.label1.update(kwargs.copy())
             # deal with label2
             tick.label2.set_text(tick_label)
-            tick.label2.update(kwargs)
+            tick.label2.update(kwargs.copy())
             # only return visible tick labels
             if tick.label1.get_visible():
                 ret.append(tick.label1)