diff --git a/lib/SimpleHttpClient/SimpleHttpClient.cpp b/lib/SimpleHttpClient/SimpleHttpClient.cpp
index 0c85814f26..4aef16f654 100644
--- a/lib/SimpleHttpClient/SimpleHttpClient.cpp
+++ b/lib/SimpleHttpClient/SimpleHttpClient.cpp
@@ -309,7 +309,7 @@ namespace triagens {
         _writeBuffer.appendText("Connection: Close\r\n");
       }
       _writeBuffer.appendText("User-Agent: ArangoDB\r\n");
-      _writeBuffer.appendText("X-Arango-Version: 1.4\r\n");
+      _writeBuffer.appendText("X-Arango-Version: 1.5\r\n");
       _writeBuffer.appendText("Accept-Encoding: deflate\r\n");
       
       // do basic authorization