diff --git a/api/core/helper/code_executor/template_transformer.py b/api/core/helper/code_executor/template_transformer.py
index 84f212a9c..a8e9f41a8 100644
--- a/api/core/helper/code_executor/template_transformer.py
+++ b/api/core/helper/code_executor/template_transformer.py
@@ -5,6 +5,8 @@ from base64 import b64encode
 from collections.abc import Mapping
 from typing import Any
 
+from core.variables.utils import SegmentJSONEncoder
+
 
 class TemplateTransformer(ABC):
     _code_placeholder: str = "{{code}}"
@@ -95,7 +97,7 @@ class TemplateTransformer(ABC):
 
     @classmethod
     def serialize_inputs(cls, inputs: Mapping[str, Any]) -> str:
-        inputs_json_str = json.dumps(inputs, ensure_ascii=False).encode()
+        inputs_json_str = json.dumps(inputs, ensure_ascii=False, cls=SegmentJSONEncoder).encode()
         input_base64_encoded = b64encode(inputs_json_str).decode("utf-8")
         return input_base64_encoded