diff --git a/R/nanonext-package.R b/R/nanonext-package.R
index 9766b8665..7bc011678 100644
--- a/R/nanonext-package.R
+++ b/R/nanonext-package.R
@@ -1,4 +1,4 @@
-# Copyright (C) 2022-2024 Hibiki AI Limited <info@hibiki-ai.com>
+# Copyright (C) 2022-2025 Hibiki AI Limited <info@hibiki-ai.com>
 #
 # This file is part of nanonext.
 #
diff --git a/inst/CITATION b/inst/CITATION
index ad3251ac0..55807a208 100644
--- a/inst/CITATION
+++ b/inst/CITATION
@@ -1,6 +1,6 @@
 bibentry(bibtype = "Manual",
          title = "nanonext: NNG (Nanomsg Next Gen) Lightweight Messaging Library",
          author = person("Charlie", "Gao"),
-         year = 2024,
+         year = 2025,
          note = sprintf("R package version %s", meta$Version),
          url = "https://doi.org/10.5281/zenodo.7903429")
diff --git a/src/nanonext.h b/src/nanonext.h
index 7520a44dc..5b92cfe29 100644
--- a/src/nanonext.h
+++ b/src/nanonext.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2022-2024 Hibiki AI Limited <info@hibiki-ai.com>
+// Copyright (C) 2022-2025 Hibiki AI Limited <info@hibiki-ai.com>
 //
 // This file is part of nanonext.
 //