diff --git a/tests/python_client/README.md b/tests/python_client/README.md
index 75c393804c..902128982e 100644
--- a/tests/python_client/README.md
+++ b/tests/python_client/README.md
@@ -113,7 +113,7 @@ where `host` should be set as the IP address of the Milvus service, and `*.html`
 
 ### Module Overview
 
-![Module Overview](https://github.com/milvus-io/milvus/blob/master/tests/python_client/graphs/module_call_diagram.jpg)
+![Module Overview](./graphs/module_call_diagram.jpg)
 
 ### Working directories and files
 
diff --git a/tests/python_client/graphs/module_call_diagram.jpg b/tests/python_client/graphs/module_call_diagram.jpg
new file mode 100644
index 0000000000..37286e04ac
Binary files /dev/null and b/tests/python_client/graphs/module_call_diagram.jpg differ