diff --git a/README.md b/README.md
index 5b181c9..88ac1aa 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ go get github.com/emahiro/aehcl
 ```go
 
 client := &http.Client {
-    Transport: aehcl.Transport(http.DefaultTransport, aehcl.WithTokenSource(aehcl.FetchIDToken))
+    Transport: aehcl.Transport(nil)
 }
 
 ```