diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0b25c42d62..f9095758d7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,8 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
-Nothing unreleased!
+### Changed
 
+- changing the default host from 0.0.0.0 to 127.0.0.1  
+  
 ## [1.1.403rc0] - 2024-08-13
 
 ### Fixed
diff --git a/backend/chainlit/config.py b/backend/chainlit/config.py
index f43482b637..5159263f96 100644
--- a/backend/chainlit/config.py
+++ b/backend/chainlit/config.py
@@ -164,7 +164,7 @@
 """
 
 
-DEFAULT_HOST = "0.0.0.0"
+DEFAULT_HOST = "127.0.0.1"
 DEFAULT_PORT = 8000
 DEFAULT_ROOT_PATH = ""