diff --git a/src/crewai/memory/storage/kickoff_task_outputs_storage.py b/src/crewai/memory/storage/kickoff_task_outputs_storage.py
index 57623eef80..dbb5f124b1 100644
--- a/src/crewai/memory/storage/kickoff_task_outputs_storage.py
+++ b/src/crewai/memory/storage/kickoff_task_outputs_storage.py
@@ -70,7 +70,7 @@ def add(
                         task.expected_output,
                         json.dumps(output, cls=CrewJSONEncoder),
                         task_index,
-                        json.dumps(inputs),
+                        json.dumps(inputs, cls=CrewJSONEncoder),
                         was_replayed,
                     ),
                 )
diff --git a/src/crewai/utilities/crew_json_encoder.py b/src/crewai/utilities/crew_json_encoder.py
index 3cab07ffc7..c3f95fcf65 100644
--- a/src/crewai/utilities/crew_json_encoder.py
+++ b/src/crewai/utilities/crew_json_encoder.py
@@ -2,13 +2,14 @@
 import json
 from uuid import UUID
 from pydantic import BaseModel
+from decimal import Decimal
 
 
 class CrewJSONEncoder(json.JSONEncoder):
     def default(self, obj):
         if isinstance(obj, BaseModel):
             return self._handle_pydantic_model(obj)
-        elif isinstance(obj, UUID):
+        elif isinstance(obj, UUID) or isinstance(obj, Decimal):
             return str(obj)
 
         elif isinstance(obj, datetime) or isinstance(obj, date):