diff --git a/index.ts b/index.ts
index 53bee71..8bb3a3a 100644
--- a/index.ts
+++ b/index.ts
@@ -1,3 +1,8 @@
+/**
+ * Copyright (c) HashiCorp, Inc.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 import * as core from "@actions/core";
 import { setupBinary } from "./setup-binary";
 
diff --git a/setup-binary.ts b/setup-binary.ts
index 3513527..d47baa0 100644
--- a/setup-binary.ts
+++ b/setup-binary.ts
@@ -1,3 +1,8 @@
+/**
+ * Copyright (c) HashiCorp, Inc.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 import * as core from "@actions/core";
 import * as hc from "@hashicorp/js-releases";
 import * as io from "@actions/io";