diff --git a/.github/workflows/copywrite.yml b/.github/workflows/copywrite.yml
new file mode 100644
index 0000000..6abdb48
--- /dev/null
+++ b/.github/workflows/copywrite.yml
@@ -0,0 +1,20 @@
+name: Check Copywrite Headers
+
+on:
+  push: {}
+
+jobs:
+  copywrite:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+      - uses: hashicorp/setup-copywrite@867a1a2a064a0626db322392806428f7dc59cb3e # v1.1.2
+        name: Setup Copywrite
+        with:
+          version: v0.16.4
+          archive-checksum: c299f830e6eef7e126a3c6ef99ac6f43a3c132d830c769e0d36fa347fa1af254
+      - name: Check Copywrite Headers
+        run: copywrite headers --plan
+
+permissions:
+  contents: read
diff --git a/internal/config/config.go b/internal/config/config.go
index 65300c0..4fc28d9 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package config
 
 import (
diff --git a/internal/simnode/build.go b/internal/simnode/build.go
index efb21c6..8c6b7e0 100644
--- a/internal/simnode/build.go
+++ b/internal/simnode/build.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package simnode
 
 import (