diff --git a/README.md b/README.md
index 1e6a8f06..776eceb6 100644
--- a/README.md
+++ b/README.md
@@ -141,8 +141,6 @@ workflow:
   agent_phone_number: "+33612345678"
   bot_company: Contoso
   bot_name: Robert
-  conversation_lang: fr-FR
-  conversation_timeout_hour: 72
 
 communication_service_call:
   access_key: xxx
diff --git a/helpers/config_models/workflow.py b/helpers/config_models/workflow.py
index 961a9e4c..b3e9e4d4 100644
--- a/helpers/config_models/workflow.py
+++ b/helpers/config_models/workflow.py
@@ -10,5 +10,5 @@ class WorkflowModel(BaseModel):
     agent_phone_number: PhoneNumber
     bot_company: str
     bot_name: str
-    conversation_lang: str
-    conversation_timeout_hour: int
+    conversation_lang: str = "fr-FR"  # French
+    conversation_timeout_hour: int = 72  # 3 days