diff --git a/.travis.yml b/.travis.yml
index 57612c3..7039aa7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,5 @@
+# Copyright IBM Corp. 2014, 2026
+
 language: go
 
 go:
diff --git a/LICENSE b/LICENSE
index 3ba02a5..fd45973 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright IBM Corp. 2014, 2023
+Copyright IBM Corp. 2014, 2026
 
 Mozilla Public License, version 2.0
 
diff --git a/bench_test.go b/bench_test.go
index e4b6367..f3ca8a1 100644
--- a/bench_test.go
+++ b/bench_test.go
@@ -1,3 +1,5 @@
+// Copyright IBM Corp. 2014, 2026
+
 package raftmdb
 
 import (
diff --git a/mdb_store.go b/mdb_store.go
index 8baddbd..9a9fea5 100644
--- a/mdb_store.go
+++ b/mdb_store.go
@@ -1,3 +1,5 @@
+// Copyright IBM Corp. 2014, 2026
+
 package raftmdb
 
 import (
diff --git a/mdb_store_test.go b/mdb_store_test.go
index b8adff5..5560f3e 100644
--- a/mdb_store_test.go
+++ b/mdb_store_test.go
@@ -1,3 +1,5 @@
+// Copyright IBM Corp. 2014, 2026
+
 package raftmdb
 
 import (
diff --git a/util.go b/util.go
index 06a4641..71f1476 100644
--- a/util.go
+++ b/util.go
@@ -1,3 +1,5 @@
+// Copyright IBM Corp. 2014, 2026
+
 package raftmdb
 
 import (