diff --git a/check.go b/check.go
index 109d0d3..36e1df9 100644
--- a/check.go
+++ b/check.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package checkpoint
 
 import (
diff --git a/check_test.go b/check_test.go
index 8dc9648..64d19f4 100644
--- a/check_test.go
+++ b/check_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package checkpoint
 
 import (
diff --git a/telemetry.go b/telemetry.go
index b9ee629..b1c5c92 100644
--- a/telemetry.go
+++ b/telemetry.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package checkpoint
 
 import (
diff --git a/telemetry_test.go b/telemetry_test.go
index b9bed89..4903905 100644
--- a/telemetry_test.go
+++ b/telemetry_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package checkpoint
 
 import (
diff --git a/versions.go b/versions.go
index a5b0d3b..bf382a0 100644
--- a/versions.go
+++ b/versions.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package checkpoint
 
 import (
diff --git a/versions_test.go b/versions_test.go
index 291d110..3c85d17 100644
--- a/versions_test.go
+++ b/versions_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package checkpoint
 
 import (