diff --git a/README.md b/README.md
index 4c2d8a7..48a9b2d 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@
 | image1 | image2 | image3 |
 | :----------: | :----------: | :----------: |
 | <img src="./home.jpeg" width="250"> | <img src="./robot.jpeg" width="250"> | <img src="./notice.jpeg" width="250"> |
-| <img src="./chat.jpeg" width="250"> | <img src="./status.jpeg" width="250"> |<img src="./userinfo.jpeg" width="250"> |
+| <img src="./chat.png" width="250"> | <img src="./status.jpeg" width="250"> |<img src="./userinfo.jpeg" width="250"> |
 
 ### 其他
 
diff --git a/bytedesk_demo/README.md b/bytedesk_demo/README.md
index 4c2d8a7..48a9b2d 100644
--- a/bytedesk_demo/README.md
+++ b/bytedesk_demo/README.md
@@ -44,7 +44,7 @@
 | image1 | image2 | image3 |
 | :----------: | :----------: | :----------: |
 | <img src="./home.jpeg" width="250"> | <img src="./robot.jpeg" width="250"> | <img src="./notice.jpeg" width="250"> |
-| <img src="./chat.jpeg" width="250"> | <img src="./status.jpeg" width="250"> |<img src="./userinfo.jpeg" width="250"> |
+| <img src="./chat.png" width="250"> | <img src="./status.jpeg" width="250"> |<img src="./userinfo.jpeg" width="250"> |
 
 ### 其他
 
diff --git a/bytedesk_demo/chat.png b/bytedesk_demo/chat.png
new file mode 100644
index 0000000..e69189c
Binary files /dev/null and b/bytedesk_demo/chat.png differ
diff --git a/chat.png b/chat.png
new file mode 100644
index 0000000..e69189c
Binary files /dev/null and b/chat.png differ