diff --git a/build.gradle b/build.gradle
index 29434f3886..aca4a8213a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,31 @@
 /*
- * This file was generated by the Gradle 'init' task.
+ * SPDX-License-Identifier: Apache-2.0
  *
- * This project uses @Incubating APIs which are subject to change.
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ *
+ * Modifications Copyright OpenSearch Contributors. See
+ * GitHub history for details.
+ */
+
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 plugins {
diff --git a/gradlew b/gradlew
index 1b6c787337..9794aa4f45 100755
--- a/gradlew
+++ b/gradlew
@@ -1,7 +1,18 @@
 #!/bin/sh
 
 #
-# Copyright © 2015-2021 the original authors.
+# SPDX-License-Identifier: Apache-2.0
+#
+# The OpenSearch Contributors require contributions made to
+# this file be licensed under the Apache-2.0 license or a
+# compatible open source license.
+#
+# Modifications Copyright OpenSearch Contributors. See
+# GitHub history for details.
+#
+
+#
+# Copyright 2015-2021 the original author or authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/gradlew.bat b/gradlew.bat
index ac1b06f938..5d049c13ef 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -1,3 +1,15 @@
+
+@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
+@rem The OpenSearch Contributors require contributions made to
+@rem this file be licensed under the Apache-2.0 license or a
+@rem compatible open source license.
+@rem
+@rem Modifications Copyright OpenSearch Contributors. See
+@rem GitHub history for details.
+@rem
+
 @rem
 @rem Copyright 2015 the original author or authors.
 @rem