diff --git a/api/core/tools/entities/tool_entities.py b/api/core/tools/entities/tool_entities.py
index 9754698bdd..ad27706c3a 100644
--- a/api/core/tools/entities/tool_entities.py
+++ b/api/core/tools/entities/tool_entities.py
@@ -113,7 +113,7 @@ class ToolParameter(BaseModel):
     form: ToolParameterForm = Field(..., description="The form of the parameter, schema/form/llm")
     llm_description: Optional[str] = None
     required: Optional[bool] = False
-    default: Optional[Union[bool, str, int]] = None
+    default: Optional[Union[int, str]] = None
     min: Optional[Union[float, int]] = None
     max: Optional[Union[float, int]] = None
     options: Optional[list[ToolParameterOption]] = None