diff --git a/docs/plugin-protocol/LICENSE b/docs/plugin-protocol/LICENSE
index e25da5fad9..c836c8f512 100644
--- a/docs/plugin-protocol/LICENSE
+++ b/docs/plugin-protocol/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2014 HashiCorp, Inc.
+Copyright IBM Corp. 2014, 2026
 
 Mozilla Public License, version 2.0
 
diff --git a/internal/tfplugin5/LICENSE b/internal/tfplugin5/LICENSE
index e25da5fad9..c836c8f512 100644
--- a/internal/tfplugin5/LICENSE
+++ b/internal/tfplugin5/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2014 HashiCorp, Inc.
+Copyright IBM Corp. 2014, 2026
 
 Mozilla Public License, version 2.0
 
diff --git a/internal/tfplugin6/LICENSE b/internal/tfplugin6/LICENSE
index e25da5fad9..c836c8f512 100644
--- a/internal/tfplugin6/LICENSE
+++ b/internal/tfplugin6/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2014 HashiCorp, Inc.
+Copyright IBM Corp. 2014, 2026
 
 Mozilla Public License, version 2.0