diff --git a/LICENSE b/LICENSE
index 3b97eaf..466e285 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2019 HashiCorp, Inc.
+Copyright IBM Corp. 2019, 2026
 
 Mozilla Public License Version 2.0
 ==================================
diff --git a/action.go b/action.go
index 9dcab85..e45265c 100644
--- a/action.go
+++ b/action.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/catalog-info.yaml b/catalog-info.yaml
index f64e838..9128c0a 100644
--- a/catalog-info.yaml
+++ b/catalog-info.yaml
@@ -1,4 +1,4 @@
-# Copyright (c) HashiCorp, Inc.
+# Copyright IBM Corp. 2019, 2026
 # SPDX-License-Identifier: MPL-2.0
 #
 # Intended for internal HashiCorp use only
diff --git a/checks.go b/checks.go
index 558cb29..64fd5d9 100644
--- a/checks.go
+++ b/checks.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/cmd/round-trip-dumper/main.go b/cmd/round-trip-dumper/main.go
index 92c2270..a023504 100644
--- a/cmd/round-trip-dumper/main.go
+++ b/cmd/round-trip-dumper/main.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package main
diff --git a/config.go b/config.go
index 6f08d7d..ff0e830 100644
--- a/config.go
+++ b/config.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/config_test.go b/config_test.go
index c0cf1e0..41242dd 100644
--- a/config_test.go
+++ b/config_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/expression.go b/expression.go
index a9da729..cd94ade 100644
--- a/expression.go
+++ b/expression.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/expression_test.go b/expression_test.go
index 1fb74ef..ee08e44 100644
--- a/expression_test.go
+++ b/expression_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/logging.go b/logging.go
index adfcf60..d793c5c 100644
--- a/logging.go
+++ b/logging.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 package tfjson
 
diff --git a/logging_generic.go b/logging_generic.go
index 4414abc..1006ab4 100644
--- a/logging_generic.go
+++ b/logging_generic.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 package tfjson
 
diff --git a/logging_query.go b/logging_query.go
index db41b74..86f1317 100644
--- a/logging_query.go
+++ b/logging_query.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 package tfjson
 
diff --git a/logging_test.go b/logging_test.go
index ffdf8a3..4c563c7 100644
--- a/logging_test.go
+++ b/logging_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 package tfjson
 
diff --git a/logging_types.go b/logging_types.go
index 6f9008c..f24ff3f 100644
--- a/logging_types.go
+++ b/logging_types.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 package tfjson
 
diff --git a/metadata.go b/metadata.go
index 9509cf6..da4e623 100644
--- a/metadata.go
+++ b/metadata.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/metadata_test.go b/metadata_test.go
index 9938a09..f63e264 100644
--- a/metadata_test.go
+++ b/metadata_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/parse_test.go b/parse_test.go
index 1bc22de..65480d9 100644
--- a/parse_test.go
+++ b/parse_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/plan.go b/plan.go
index 54c37ba..8875200 100644
--- a/plan.go
+++ b/plan.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/plan_test.go b/plan_test.go
index 46c9c35..2235678 100644
--- a/plan_test.go
+++ b/plan_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/sanitize/copy.go b/sanitize/copy.go
index 01913a1..b002d20 100644
--- a/sanitize/copy.go
+++ b/sanitize/copy.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package sanitize
diff --git a/sanitize/copy_test.go b/sanitize/copy_test.go
index be7d6a4..7a6c07f 100644
--- a/sanitize/copy_test.go
+++ b/sanitize/copy_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package sanitize
diff --git a/sanitize/sanitize_change.go b/sanitize/sanitize_change.go
index 086cca1..e536668 100644
--- a/sanitize/sanitize_change.go
+++ b/sanitize/sanitize_change.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package sanitize
diff --git a/sanitize/sanitize_change_test.go b/sanitize/sanitize_change_test.go
index 0741b2a..5350fdd 100644
--- a/sanitize/sanitize_change_test.go
+++ b/sanitize/sanitize_change_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package sanitize
diff --git a/sanitize/sanitize_plan.go b/sanitize/sanitize_plan.go
index d03b8fa..df12673 100644
--- a/sanitize/sanitize_plan.go
+++ b/sanitize/sanitize_plan.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package sanitize
diff --git a/sanitize/sanitize_plan_test.go b/sanitize/sanitize_plan_test.go
index 9506423..6c90b2c 100644
--- a/sanitize/sanitize_plan_test.go
+++ b/sanitize/sanitize_plan_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package sanitize
diff --git a/sanitize/sanitize_plan_variables.go b/sanitize/sanitize_plan_variables.go
index b800ebb..fa1a58d 100644
--- a/sanitize/sanitize_plan_variables.go
+++ b/sanitize/sanitize_plan_variables.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package sanitize
diff --git a/sanitize/sanitize_plan_variables_test.go b/sanitize/sanitize_plan_variables_test.go
index 482b181..c96a0ae 100644
--- a/sanitize/sanitize_plan_variables_test.go
+++ b/sanitize/sanitize_plan_variables_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package sanitize
diff --git a/sanitize/sanitize_state.go b/sanitize/sanitize_state.go
index e1fe1a7..a92cb1b 100644
--- a/sanitize/sanitize_state.go
+++ b/sanitize/sanitize_state.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package sanitize
diff --git a/sanitize/sanitize_state_test.go b/sanitize/sanitize_state_test.go
index ac7d501..34e34cb 100644
--- a/sanitize/sanitize_state_test.go
+++ b/sanitize/sanitize_state_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package sanitize
diff --git a/schemas.go b/schemas.go
index e0beac7..501f57c 100644
--- a/schemas.go
+++ b/schemas.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/schemas_test.go b/schemas_test.go
index 82a2d25..2752547 100644
--- a/schemas_test.go
+++ b/schemas_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/state.go b/state.go
index 8347ad5..966726b 100644
--- a/state.go
+++ b/state.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/state_test.go b/state_test.go
index cc9a056..4d0dc83 100644
--- a/state_test.go
+++ b/state_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/tfjson.go b/tfjson.go
index 3a78a4f..2169837 100644
--- a/tfjson.go
+++ b/tfjson.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 // Package tfjson is a de-coupled helper library containing types for
diff --git a/validate.go b/validate.go
index 8b101dd..dbae3ee 100644
--- a/validate.go
+++ b/validate.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/validate_test.go b/validate_test.go
index 6b7860f..a3e42b6 100644
--- a/validate_test.go
+++ b/validate_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/version.go b/version.go
index 7516ad6..392d082 100644
--- a/version.go
+++ b/version.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson
diff --git a/version_test.go b/version_test.go
index b935fbd..aa9cf02 100644
--- a/version_test.go
+++ b/version_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2019, 2026
 // SPDX-License-Identifier: MPL-2.0
 
 package tfjson