diff --git a/src/ImageFitter/ImageFitter2.cc b/src/ImageFitter/ImageFitter2.cc
index 1bca5ed02..2b0337747 100644
--- a/src/ImageFitter/ImageFitter2.cc
+++ b/src/ImageFitter/ImageFitter2.cc
@@ -1,5 +1,5 @@
 /* This file is part of the CARTA Image Viewer: https://github.com/CARTAvis/carta-backend
-   Copyright 2018-2022 Academia Sinica Institute of Astronomy and Astrophysics (ASIAA),
+   Copyright 2018 Academia Sinica Institute of Astronomy and Astrophysics (ASIAA),
    Associated Universities, Inc. (AUI) and the Inter-University Institute for Data Intensive Astronomy (IDIA)
    SPDX-License-Identifier: GPL-3.0-or-later
 */
diff --git a/src/ImageFitter/ImageFitter2.h b/src/ImageFitter/ImageFitter2.h
index 1407248ab..7c5de9854 100644
--- a/src/ImageFitter/ImageFitter2.h
+++ b/src/ImageFitter/ImageFitter2.h
@@ -1,5 +1,5 @@
 /* This file is part of the CARTA Image Viewer: https://github.com/CARTAvis/carta-backend
-   Copyright 2018-2022 Academia Sinica Institute of Astronomy and Astrophysics (ASIAA),
+   Copyright 2018 Academia Sinica Institute of Astronomy and Astrophysics (ASIAA),
    Associated Universities, Inc. (AUI) and the Inter-University Institute for Data Intensive Astronomy (IDIA)
    SPDX-License-Identifier: GPL-3.0-or-later
 */