diff --git a/src/smolagents/agents.py b/src/smolagents/agents.py
index a9ec233..e44a050 100644
--- a/src/smolagents/agents.py
+++ b/src/smolagents/agents.py
@@ -34,8 +34,8 @@ from .local_python_executor import (
     fix_final_answer_code,
 )
 from .models import (
-    MessageRole,
     ChatMessage,
+    MessageRole,
 )
 from .monitoring import Monitor
 from .prompts import (