diff --git a/workflows/workflow_use/builder/service.py b/workflows/workflow_use/builder/service.py
index f6d12437..607c0964 100644
--- a/workflows/workflow_use/builder/service.py
+++ b/workflows/workflow_use/builder/service.py
@@ -327,7 +327,7 @@ async def build_workflow_from_path(
         self, path: Path, user_goal: str
     ) -> WorkflowDefinitionSchema:
         """Build a workflow from a JSON file path."""
-        with open(path, "r") as f:
+        with open(path, "r", encoding="utf-8") as f:
             workflow_data = json.load(f)
 
         workflow_data_schema = WorkflowDefinitionSchema.model_validate(workflow_data)
diff --git a/workflows/workflow_use/workflow/service.py b/workflows/workflow_use/workflow/service.py
index 8aaa0d80..28b5ddea 100644
--- a/workflows/workflow_use/workflow/service.py
+++ b/workflows/workflow_use/workflow/service.py
@@ -90,7 +90,7 @@ def load_from_file(
 		llm: BaseChatModel | None = None,
 	) -> Workflow:
 		"""Load a workflow from a file."""
-		with open(file_path, 'r') as f:
+		with open(file_path, 'r', encoding="utf-8") as f:
 			data = _json.load(f)
 		workflow_schema = WorkflowDefinitionSchema(**data)
 		return Workflow(workflow_schema=workflow_schema, controller=controller, browser=browser, llm=llm)