diff --git a/dustmaps/json_serializers.py b/dustmaps/json_serializers.py
index 2a0a0cd..4a5574c 100644
--- a/dustmaps/json_serializers.py
+++ b/dustmaps/json_serializers.py
@@ -267,7 +267,11 @@ def serialize_skycoord(o):
     except AttributeError:
         # Very old versions of astropy do not use `representation_type`
         representation_type = o.representation
-    representation = representation_type.get_name()
+    # .name was introduced in astropy 7.1 (replacing the deprecated .get_name())
+    if hasattr(representation_type, 'name'):
+        representation = representation_type.name
+    else:
+        representation = representation_type.get_name()
     frame = o.frame.name
 
     r = o.represent_as('spherical')