diff --git a/lib/vault/api/approle.rb b/lib/vault/api/approle.rb
index 31c92c9..9570861 100644
--- a/lib/vault/api/approle.rb
+++ b/lib/vault/api/approle.rb
@@ -1,4 +1,4 @@
-# Copyright IBM Corp. 2015, 2025
+# Copyright IBM Corp. 2015, 2026
 # SPDX-License-Identifier: MPL-2.0
 
 require "json"
diff --git a/lib/vault/api/auth.rb b/lib/vault/api/auth.rb
index 51f571e..7139b9d 100644
--- a/lib/vault/api/auth.rb
+++ b/lib/vault/api/auth.rb
@@ -1,4 +1,4 @@
-# Copyright IBM Corp. 2015, 2025
+# Copyright IBM Corp. 2015, 2026
 # SPDX-License-Identifier: MPL-2.0
 
 require "json"
diff --git a/lib/vault/api/logical.rb b/lib/vault/api/logical.rb
index aae8393..829c6a9 100644
--- a/lib/vault/api/logical.rb
+++ b/lib/vault/api/logical.rb
@@ -1,4 +1,4 @@
-# Copyright IBM Corp. 2015, 2025
+# Copyright IBM Corp. 2015, 2026
 # SPDX-License-Identifier: MPL-2.0
 
 require_relative "secret"
diff --git a/lib/vault/api/sys/leader.rb b/lib/vault/api/sys/leader.rb
index 439a500..14c61d0 100644
--- a/lib/vault/api/sys/leader.rb
+++ b/lib/vault/api/sys/leader.rb
@@ -1,4 +1,4 @@
-# Copyright IBM Corp. 2015, 2025
+# Copyright IBM Corp. 2015, 2026
 # SPDX-License-Identifier: MPL-2.0
 
 module Vault
diff --git a/lib/vault/version.rb b/lib/vault/version.rb
index 839ff5d..8108229 100644
--- a/lib/vault/version.rb
+++ b/lib/vault/version.rb
@@ -1,4 +1,4 @@
-# Copyright IBM Corp. 2015, 2025
+# Copyright IBM Corp. 2015, 2026
 # SPDX-License-Identifier: MPL-2.0
 
 module Vault
diff --git a/spec/integration/api/auth_spec.rb b/spec/integration/api/auth_spec.rb
index cf1c0c1..e95acb4 100644
--- a/spec/integration/api/auth_spec.rb
+++ b/spec/integration/api/auth_spec.rb
@@ -1,4 +1,4 @@
-# Copyright IBM Corp. 2015, 2025
+# Copyright IBM Corp. 2015, 2026
 # SPDX-License-Identifier: MPL-2.0
 
 require "spec_helper"
diff --git a/spec/integration/api/sys/leader_spec.rb b/spec/integration/api/sys/leader_spec.rb
index 75cd174..5cafe54 100644
--- a/spec/integration/api/sys/leader_spec.rb
+++ b/spec/integration/api/sys/leader_spec.rb
@@ -1,4 +1,4 @@
-# Copyright IBM Corp. 2015, 2025
+# Copyright IBM Corp. 2015, 2026
 # SPDX-License-Identifier: MPL-2.0
 
 require "spec_helper"
diff --git a/spec/unit/auth_spec.rb b/spec/unit/auth_spec.rb
index 65eabb6..58bb4bd 100644
--- a/spec/unit/auth_spec.rb
+++ b/spec/unit/auth_spec.rb
@@ -1,4 +1,4 @@
-# Copyright IBM Corp. 2015, 2025
+# Copyright IBM Corp. 2015, 2026
 # SPDX-License-Identifier: MPL-2.0
 
 require "spec_helper"
diff --git a/spec/unit/encode_spec.rb b/spec/unit/encode_spec.rb
index 4a8f9f5..1749717 100644
--- a/spec/unit/encode_spec.rb
+++ b/spec/unit/encode_spec.rb
@@ -1,4 +1,4 @@
-# Copyright (c) HashiCorp, Inc.
+# Copyright IBM Corp. 2015, 2026
 # SPDX-License-Identifier: MPL-2.0
 
 require "spec_helper"
diff --git a/spec/unit/logical_spec.rb b/spec/unit/logical_spec.rb
index e9e78d2..351b510 100644
--- a/spec/unit/logical_spec.rb
+++ b/spec/unit/logical_spec.rb
@@ -1,4 +1,4 @@
-# Copyright (c) HashiCorp, Inc.
+# Copyright IBM Corp. 2015, 2026
 # SPDX-License-Identifier: MPL-2.0
 
 require "spec_helper"