diff --git a/.golangci.yml b/.golangci.yml
index 6afa968..135bf4c 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -1,4 +1,4 @@
-# Copyright (c) HashiCorp, Inc.
+# Copyright IBM Corp. 2015, 2025
 # SPDX-License-Identifier: MPL-2.0
 
 version: "2"
diff --git a/LICENSE b/LICENSE
index f4f97ee..4af220d 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2015 HashiCorp, Inc.
+Copyright IBM Corp. 2015, 2025
 
 Mozilla Public License, version 2.0
 
diff --git a/cert_error_go119.go b/cert_error_go119.go
index b2b27e8..515281a 100644
--- a/cert_error_go119.go
+++ b/cert_error_go119.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2015, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 //go:build !go1.20
diff --git a/cert_error_go120.go b/cert_error_go120.go
index a3cd315..e6cd246 100644
--- a/cert_error_go120.go
+++ b/cert_error_go120.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2015, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 //go:build go1.20
diff --git a/client.go b/client.go
index 91059f7..3a22b99 100644
--- a/client.go
+++ b/client.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2015, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 // Package retryablehttp provides a familiar HTTP client interface with
diff --git a/client_test.go b/client_test.go
index 8c5c783..0e8ca60 100644
--- a/client_test.go
+++ b/client_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2015, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package retryablehttp
diff --git a/roundtripper.go b/roundtripper.go
index 8c407ad..6ab87df 100644
--- a/roundtripper.go
+++ b/roundtripper.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2015, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package retryablehttp
diff --git a/roundtripper_test.go b/roundtripper_test.go
index 8d468c9..1463bde 100644
--- a/roundtripper_test.go
+++ b/roundtripper_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2015, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package retryablehttp