diff --git a/src/main/scala/com/github/sbt/sbom/SbtUpdateReport.scala b/src/main/scala/com/github/sbt/sbom/SbtUpdateReport.scala
index b86b751..3e02fcc 100644
--- a/src/main/scala/com/github/sbt/sbom/SbtUpdateReport.scala
+++ b/src/main/scala/com/github/sbt/sbom/SbtUpdateReport.scala
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2023, Scala center, 2011 - 2022, Lightbend, Inc., 2008 - 2010, Mark Harrah
+//
+// SPDX-License-Identifier: Apache-2.0
+
 package com.github.sbt.sbom
 
 import sbt.librarymanagement.{ ConfigurationReport, ModuleID, ModuleReport }
diff --git a/src/sbt-test/dependencies/compileNoTree/build.sbt b/src/sbt-test/dependencies/compileNoTree/build.sbt
index 887646d..9c14d67 100644
--- a/src/sbt-test/dependencies/compileNoTree/build.sbt
+++ b/src/sbt-test/dependencies/compileNoTree/build.sbt
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: The sbt-sbom team
+//
+// SPDX-License-Identifier: MIT
+
 lazy val root = (project in file("."))
   .settings(
     name := "dependencies",
diff --git a/src/sbt-test/dependencies/compileNoTree/project/Dependencies.scala b/src/sbt-test/dependencies/compileNoTree/project/Dependencies.scala
index 0da6517..0ae3888 100644
--- a/src/sbt-test/dependencies/compileNoTree/project/Dependencies.scala
+++ b/src/sbt-test/dependencies/compileNoTree/project/Dependencies.scala
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: The sbt-sbom team
+//
+// SPDX-License-Identifier: MIT
+
 import sbt._
 
 object Dependencies {
diff --git a/src/sbt-test/dependencies/compileNoTree/project/plugins.sbt b/src/sbt-test/dependencies/compileNoTree/project/plugins.sbt
index 7e612ed..4b38ff3 100644
--- a/src/sbt-test/dependencies/compileNoTree/project/plugins.sbt
+++ b/src/sbt-test/dependencies/compileNoTree/project/plugins.sbt
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: The sbt-sbom team
+//
+// SPDX-License-Identifier: MIT
+
 (
   sys.props.get("plugin.version"),
   sys.props.get("plugin.organization")
diff --git a/src/sbt-test/dependencies/compileNoTree/test b/src/sbt-test/dependencies/compileNoTree/test
index 15675b1..05d507b 100644
--- a/src/sbt-test/dependencies/compileNoTree/test
+++ b/src/sbt-test/dependencies/compileNoTree/test
@@ -1 +1,3 @@
+# SPDX-FileCopyrightText: The sbt-sbom team
+# SPDX-License-Identifier: MIT
 > check
diff --git a/src/sbt-test/dependenciesJson/compileNoTree/build.sbt b/src/sbt-test/dependenciesJson/compileNoTree/build.sbt
index b85ad36..5c2ff31 100644
--- a/src/sbt-test/dependenciesJson/compileNoTree/build.sbt
+++ b/src/sbt-test/dependenciesJson/compileNoTree/build.sbt
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: The sbt-sbom team
+//
+// SPDX-License-Identifier: MIT
+
 lazy val root = (project in file("."))
   .settings(
     name := "dependencies",
diff --git a/src/sbt-test/dependenciesJson/compileNoTree/project/Dependencies.scala b/src/sbt-test/dependenciesJson/compileNoTree/project/Dependencies.scala
index 0da6517..0ae3888 100644
--- a/src/sbt-test/dependenciesJson/compileNoTree/project/Dependencies.scala
+++ b/src/sbt-test/dependenciesJson/compileNoTree/project/Dependencies.scala
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: The sbt-sbom team
+//
+// SPDX-License-Identifier: MIT
+
 import sbt._
 
 object Dependencies {
diff --git a/src/sbt-test/dependenciesJson/compileNoTree/project/plugins.sbt b/src/sbt-test/dependenciesJson/compileNoTree/project/plugins.sbt
index 7e612ed..4b38ff3 100644
--- a/src/sbt-test/dependenciesJson/compileNoTree/project/plugins.sbt
+++ b/src/sbt-test/dependenciesJson/compileNoTree/project/plugins.sbt
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: The sbt-sbom team
+//
+// SPDX-License-Identifier: MIT
+
 (
   sys.props.get("plugin.version"),
   sys.props.get("plugin.organization")
diff --git a/src/sbt-test/dependenciesJson/compileNoTree/test b/src/sbt-test/dependenciesJson/compileNoTree/test
index 15675b1..05d507b 100644
--- a/src/sbt-test/dependenciesJson/compileNoTree/test
+++ b/src/sbt-test/dependenciesJson/compileNoTree/test
@@ -1 +1,3 @@
+# SPDX-FileCopyrightText: The sbt-sbom team
+# SPDX-License-Identifier: MIT
 > check