diff --git a/pyproject.toml b/pyproject.toml
index dbd5ea1..988f791 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -148,6 +148,7 @@ name = "google.adk"
 [tool.isort]
 profile = "google"
 single_line_exclusions = []
+known_third_party = ["google.adk"]
 
 
 [tool.pytest.ini_options]