diff --git a/qiskit_optimization/problems/linear_constraint.py b/qiskit_optimization/problems/linear_constraint.py
index fc7354b8..c7e7765c 100644
--- a/qiskit_optimization/problems/linear_constraint.py
+++ b/qiskit_optimization/problems/linear_constraint.py
@@ -1,6 +1,6 @@
 # This code is part of a Qiskit project.
 #
-# (C) Copyright IBM 2019, 2023.
+# (C) Copyright IBM 2019, 2024.
 #
 # This code is licensed under the Apache License, Version 2.0. You may
 # obtain a copy of this license in the LICENSE.txt file in the root directory
diff --git a/qiskit_optimization/problems/quadratic_constraint.py b/qiskit_optimization/problems/quadratic_constraint.py
index 9255a60e..623a47c4 100644
--- a/qiskit_optimization/problems/quadratic_constraint.py
+++ b/qiskit_optimization/problems/quadratic_constraint.py
@@ -1,6 +1,6 @@
 # This code is part of a Qiskit project.
 #
-# (C) Copyright IBM 2019, 2023.
+# (C) Copyright IBM 2019, 2024.
 #
 # This code is licensed under the Apache License, Version 2.0. You may
 # obtain a copy of this license in the LICENSE.txt file in the root directory
diff --git a/qiskit_optimization/problems/quadratic_objective.py b/qiskit_optimization/problems/quadratic_objective.py
index fcf63cb1..2104fe44 100644
--- a/qiskit_optimization/problems/quadratic_objective.py
+++ b/qiskit_optimization/problems/quadratic_objective.py
@@ -1,6 +1,6 @@
 # This code is part of a Qiskit project.
 #
-# (C) Copyright IBM 2019, 2023.
+# (C) Copyright IBM 2019, 2024.
 #
 # This code is licensed under the Apache License, Version 2.0. You may
 # obtain a copy of this license in the LICENSE.txt file in the root directory
diff --git a/qiskit_optimization/problems/variable.py b/qiskit_optimization/problems/variable.py
index b5f2e2b5..20def0ee 100644
--- a/qiskit_optimization/problems/variable.py
+++ b/qiskit_optimization/problems/variable.py
@@ -1,6 +1,6 @@
 # This code is part of a Qiskit project.
 #
-# (C) Copyright IBM 2019, 2023.
+# (C) Copyright IBM 2019, 2024.
 #
 # This code is licensed under the Apache License, Version 2.0. You may
 # obtain a copy of this license in the LICENSE.txt file in the root directory