diff --git a/semhash/datamodels.py b/semhash/datamodels.py
index 2539561..59aa5e3 100644
--- a/semhash/datamodels.py
+++ b/semhash/datamodels.py
@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import json
 import warnings
 from collections import defaultdict
 from dataclasses import dataclass, field
@@ -156,7 +157,15 @@ def _to_hashable(record: Record) -> frozendict[str, str] | str:
             # Get the list of duplicates for the selected record
             raw_list = buckets.get(_to_hashable(selected), [])
             # Ensure we don't have duplicates in the list
-            deduped = {_to_hashable(rec): (rec, score) for rec, score in raw_list}
+            # Use full-record canonical JSON for dicts so that unhashable values are handled correctly
+            deduped = {
+                (
+                    json.dumps(rec, sort_keys=True, separators=(",", ":"), ensure_ascii=False)
+                    if isinstance(rec, dict)
+                    else rec
+                ): (rec, score)
+                for rec, score in raw_list
+            }
             result.append(SelectedWithDuplicates(record=selected, duplicates=list(deduped.values())))
 
         return result
diff --git a/semhash/version.py b/semhash/version.py
index 0c3f13b..9bfefb0 100644
--- a/semhash/version.py
+++ b/semhash/version.py
@@ -1,2 +1,2 @@
-__version_triple__ = (0, 3, 2)
+__version_triple__ = (0, 3, 3)
 __version__ = ".".join(map(str, __version_triple__))