diff --git a/README.md b/README.md
index 8d7b5ec4..c9c82493 100644
--- a/README.md
+++ b/README.md
@@ -1829,6 +1829,8 @@ package main
 
 import (
   "context"
+  "errors"
+  "io"
   "log"
   "net/http"
   "os"