diff --git a/aea/cli/generate_key.py b/aea/cli/generate_key.py
index ac46fd2b79..7471ca8a93 100644
--- a/aea/cli/generate_key.py
+++ b/aea/cli/generate_key.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # ------------------------------------------------------------------------------
 #
-#   Copyright 2021-2022 Valory AG
+#   Copyright 2021-2023 Valory AG
 #   Copyright 2018-2020 Fetch.AI Limited
 #
 #   Licensed under the Apache License, Version 2.0 (the "License");
diff --git a/aea/crypto/helpers.py b/aea/crypto/helpers.py
index 7bca201880..9d14a3e225 100644
--- a/aea/crypto/helpers.py
+++ b/aea/crypto/helpers.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # ------------------------------------------------------------------------------
 #
-#   Copyright 2021-2022 Valory AG
+#   Copyright 2021-2023 Valory AG
 #   Copyright 2018-2019 Fetch.AI Limited
 #
 #   Licensed under the Apache License, Version 2.0 (the "License");