diff --git a/backend/chainlit/data/dynamodb.py b/backend/chainlit/data/dynamodb.py
index b3524b0734..f43ee3178e 100644
--- a/backend/chainlit/data/dynamodb.py
+++ b/backend/chainlit/data/dynamodb.py
@@ -3,6 +3,7 @@
 import logging
 import os
 import random
+from decimal import Decimal
 from dataclasses import asdict
 from datetime import datetime
 from typing import TYPE_CHECKING, Any, Dict, List, Optional, Union
@@ -60,17 +61,49 @@ def __init__(
     def _get_current_timestamp(self) -> str:
         return datetime.now().isoformat() + "Z"
 
+    def _convert_floats_to_decimal(self, obj):
+        if isinstance(obj, list):
+            return [self._convert_floats_to_decimal(i) for i in obj]
+
+        for key, value in obj.items():
+            if isinstance(value, float):
+                obj[key] = Decimal(str(value))
+            elif isinstance(value, dict):
+                self._convert_floats_to_decimal(value)
+            elif isinstance(value, list):
+                obj[key] = [self._convert_floats_to_decimal(i) for i in value]
+
+        return obj
+    
+    def _convert_decimal_to_floats(self, obj):
+        if isinstance(obj, list):
+            return [self._convert_decimal_to_floats(i) for i in obj]
+
+        for key, value in obj.items():
+            if isinstance(value, Decimal):
+                obj[key] = float(value)
+            elif isinstance(value, dict):
+                self._convert_decimal_to_floats(value)
+            elif isinstance(value, list):
+                obj[key] = [self._convert_decimal_to_floats(i) for i in value]
+
+        return obj
+
     def _serialize_item(self, item: Dict[str, Any]) -> Dict[str, Any]:
+        item = self._convert_floats_to_decimal(item)
         return {
-            key: self._type_serializer.serialize(value) for key, value in item.items()
+            key: self._type_serializer.serialize(value) 
+            for key, value in item.items()
         }
 
     def _deserialize_item(self, item: Dict[str, Any]) -> Dict[str, Any]:
+        item = self._convert_decimal_to_floats(item)
         return {
             key: self._type_deserializer.deserialize(value)
             for key, value in item.items()
         }
 
+
     def _update_item(self, key: Dict[str, Any], updates: Dict[str, Any]):
         update_expr: List[str] = []
         expression_attribute_names = {}