diff --git a/plugins/spark/v3.5/spark/LICENSE b/plugins/spark/v3.5/spark/LICENSE
index a107544715..0052b53fca 100644
--- a/plugins/spark/v3.5/spark/LICENSE
+++ b/plugins/spark/v3.5/spark/LICENSE
@@ -375,6 +375,14 @@ License: Apache License 2.0 - https://www.apache.org/licenses/LICENSE-2.0.txt
 
 --------------------------------------------------------------------------------
 
+This binary artifact contains Google FlatBuffers.
+
+Copyright: 2013-2020 Google Inc.
+Home page: https://google.github.io/flatbuffers/
+License: http://www.apache.org/licenses/LICENSE-2.0
+
+--------------------------------------------------------------------------------
+
 This binary artifact contains ThreeTen.
 
 Copyright: 2007-present, Stephen Colebourne & Michael Nascimento Santos.