diff --git a/lib/http.js b/lib/http.js
index 0e66c67e62..50e6df596b 100644
--- a/lib/http.js
+++ b/lib/http.js
@@ -333,7 +333,7 @@ function ClientRequest (method, uri, headers) {
   }
   this.closeOnFinish = true;
 
-  this.sendHeaderLines(method + " " + uri + " HTTP/1.0\r\n", headers);
+  this.sendHeaderLines(method + " " + uri + " HTTP/1.1\r\n", headers);
 }
 node.inherits(ClientRequest, OutgoingMessage);