diff --git a/fix/fixer_parallels_headless_test.go b/fix/fixer_parallels_headless_test.go
index 62f5654bb..0ff1ae839 100644
--- a/fix/fixer_parallels_headless_test.go
+++ b/fix/fixer_parallels_headless_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package fix
diff --git a/fix/fixer_qemu_host_port_test.go b/fix/fixer_qemu_host_port_test.go
index 7a9bf529c..a888d92dc 100644
--- a/fix/fixer_qemu_host_port_test.go
+++ b/fix/fixer_qemu_host_port_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package fix
diff --git a/fix/fixer_scaleway_access_key.go b/fix/fixer_scaleway_access_key.go
index cf9e17392..1d52264ad 100644
--- a/fix/fixer_scaleway_access_key.go
+++ b/fix/fixer_scaleway_access_key.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package fix
diff --git a/fix/fixer_ssh_timeout.go b/fix/fixer_ssh_timeout.go
index 1279addc3..4c0a31567 100644
--- a/fix/fixer_ssh_timeout.go
+++ b/fix/fixer_ssh_timeout.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package fix
diff --git a/fix/fixer_sshdisableagent.go b/fix/fixer_sshdisableagent.go
index aa36504f0..d4ff5d9a1 100644
--- a/fix/fixer_sshdisableagent.go
+++ b/fix/fixer_sshdisableagent.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package fix
diff --git a/fix/fixer_vmware_rename.go b/fix/fixer_vmware_rename.go
index c81e01b85..6d77201c9 100644
--- a/fix/fixer_vmware_rename.go
+++ b/fix/fixer_vmware_rename.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package fix
diff --git a/fix/fixer_vsphere_network_storage_test.go b/fix/fixer_vsphere_network_storage_test.go
index 59e4bbf1c..f7457671d 100644
--- a/fix/fixer_vsphere_network_storage_test.go
+++ b/fix/fixer_vsphere_network_storage_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package fix
diff --git a/fix/helpers.go b/fix/helpers.go
index d4d01b221..dc985b514 100644
--- a/fix/helpers.go
+++ b/fix/helpers.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package fix
diff --git a/hcl2template/addrs/doc.go b/hcl2template/addrs/doc.go
index 783284822..69e981237 100644
--- a/hcl2template/addrs/doc.go
+++ b/hcl2template/addrs/doc.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 // Package addrs contains types that represent "addresses", which are
diff --git a/hcl2template/addrs/input_variable.go b/hcl2template/addrs/input_variable.go
index 9ffbf6fb0..4dc3466d2 100644
--- a/hcl2template/addrs/input_variable.go
+++ b/hcl2template/addrs/input_variable.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package addrs
diff --git a/hcl2template/function/index.go b/hcl2template/function/index.go
index 8aade576d..61b361c89 100644
--- a/hcl2template/function/index.go
+++ b/hcl2template/function/index.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package function
diff --git a/hcl2template/repl/repl.go b/hcl2template/repl/repl.go
index eb13353ee..23270ef74 100644
--- a/hcl2template/repl/repl.go
+++ b/hcl2template/repl/repl.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 // Package repl provides the structs and functions necessary to run REPL for
diff --git a/hcl2template/shim/mock.go b/hcl2template/shim/mock.go
index 40fdbca4d..888bb21e6 100644
--- a/hcl2template/shim/mock.go
+++ b/hcl2template/shim/mock.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 //go:generate packer-sdc mapstructure-to-hcl2 -type MockConfig,NestedMockConfig,MockTag
diff --git a/hcl2template/types.required_plugins.go b/hcl2template/types.required_plugins.go
index b5aa0328d..b7262e790 100644
--- a/hcl2template/types.required_plugins.go
+++ b/hcl2template/types.required_plugins.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package hcl2template
diff --git a/internal/dag/dag_test.go b/internal/dag/dag_test.go
index 314fa7648..b6d10e44c 100644
--- a/internal/dag/dag_test.go
+++ b/internal/dag/dag_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package dag
diff --git a/internal/hcp/env/env.go b/internal/hcp/env/env.go
index 4d8059371..0f1cad20d 100644
--- a/internal/hcp/env/env.go
+++ b/internal/hcp/env/env.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 // Package env provides HCP Packer environment variables.
diff --git a/packer/cmd_builder.go b/packer/cmd_builder.go
index 8b472d1fb..62b126d41 100644
--- a/packer/cmd_builder.go
+++ b/packer/cmd_builder.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package packer
diff --git a/packer/plugin-getter/plugins_test.go b/packer/plugin-getter/plugins_test.go
index 881663796..5142807e3 100644
--- a/packer/plugin-getter/plugins_test.go
+++ b/packer/plugin-getter/plugins_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package plugingetter