diff --git a/README.md b/README.md
index 8a1357d..6026f66 100644
--- a/README.md
+++ b/README.md
@@ -43,4 +43,5 @@ python run_gaia_workforce.py
 python run_gaia_workforce_claude.py
 ```
 
+You can modify `test_idx` variable to specify the test case.