diff --git a/Source/AppDelegate.h b/Source/AppDelegate.h
index 8825051e..a2c01108 100644
--- a/Source/AppDelegate.h
+++ b/Source/AppDelegate.h
@@ -1,11 +1,15 @@
 //
 // AppDelegate.h
 //
-// Copyright (c) 2021 The vChewing Project.
+// Copyright (c) 2021-2022 The vChewing Project.
+// Copyright (c) 2011-2022 The OpenVanilla Project.
 //
 // Contributors:
-//     Mengjuei Hsieh (@mjhsieh)
-//     Weizhong Yang (@zonble)
+//     Mengjuei Hsieh (@mjhsieh) @ OpenVanilla
+//     Weizhong Yang (@zonble) @ OpenVanilla
+//     Lukhnos Liu (@lukhnos) @ OpenVanilla
+//     Hiraku Wang (@hirakujira) @ vChewing
+//     Shiki Suen (@ShikiSuen) @ vChewing
 //
 // Based on the Syrup Project and the Formosana Library
 // by Lukhnos Liu (@lukhnos).
diff --git a/Source/AppDelegate.m b/Source/AppDelegate.m
index 0f1a0d5e..3c66fb3b 100644
--- a/Source/AppDelegate.m
+++ b/Source/AppDelegate.m
@@ -1,11 +1,15 @@
 //
 // AppDelegate.m
 //
-// Copyright (c) 2021 The vChewing Project.
+// Copyright (c) 2021-2022 The vChewing Project.
+// Copyright (c) 2011-2022 The OpenVanilla Project.
 //
 // Contributors:
-//     Mengjuei Hsieh (@mjhsieh)
-//     Weizhong Yang (@zonble)
+//     Mengjuei Hsieh (@mjhsieh) @ OpenVanilla
+//     Weizhong Yang (@zonble) @ OpenVanilla
+//     Lukhnos Liu (@lukhnos) @ OpenVanilla
+//     Hiraku Wang (@hirakujira) @ vChewing
+//     Shiki Suen (@ShikiSuen) @ vChewing
 //
 // Based on the Syrup Project and the Formosana Library
 // by Lukhnos Liu (@lukhnos).
diff --git a/Source/CandidateUI/VTHorizontalCandidateController.h b/Source/CandidateUI/VTHorizontalCandidateController.h
index 23c9da4e..cd396755 100644
--- a/Source/CandidateUI/VTHorizontalCandidateController.h
+++ b/Source/CandidateUI/VTHorizontalCandidateController.h
@@ -1,7 +1,12 @@
 //
 // VTHorizontalCandidateController.h
 //
-// Copyright (c) 2012 Lukhnos D. Liu (http://lukhnos.org)
+// Copyright (c) 2021-2022 The vChewing Project.
+// Copyright (c) 2011-2022 The OpenVanilla Project.
+//
+// Contributors:
+//     Lukhnos Liu (@lukhnos) @ OpenVanilla
+//     Shiki Suen (@ShikiSuen) @ vChewing
 //
 // Permission is hereby granted, free of charge, to any person
 // obtaining a copy of this software and associated documentation
diff --git a/Source/CandidateUI/VTHorizontalCandidateController.m b/Source/CandidateUI/VTHorizontalCandidateController.m
index d3246dbe..2c5e47c6 100644
--- a/Source/CandidateUI/VTHorizontalCandidateController.m
+++ b/Source/CandidateUI/VTHorizontalCandidateController.m
@@ -1,7 +1,12 @@
 //
 // VTHorizontalCandidateController.m
 //
-// Copyright (c) 2012 Lukhnos D. Liu (http://lukhnos.org)
+// Copyright (c) 2021-2022 The vChewing Project.
+// Copyright (c) 2011-2022 The OpenVanilla Project.
+//
+// Contributors:
+//     Lukhnos Liu (@lukhnos) @ OpenVanilla
+//     Shiki Suen (@ShikiSuen) @ vChewing
 //
 // Permission is hereby granted, free of charge, to any person
 // obtaining a copy of this software and associated documentation
diff --git a/Source/CandidateUI/VTHorizontalCandidateView.h b/Source/CandidateUI/VTHorizontalCandidateView.h
index 492b7c5c..f0d35fa8 100644
--- a/Source/CandidateUI/VTHorizontalCandidateView.h
+++ b/Source/CandidateUI/VTHorizontalCandidateView.h
@@ -1,7 +1,12 @@
 //
 // VTHorizontalCandidateView.h
 //
-// Copyright (c) 2012 Lukhnos D. Liu (http://lukhnos.org)
+// Copyright (c) 2021-2022 The vChewing Project.
+// Copyright (c) 2011-2022 The OpenVanilla Project.
+//
+// Contributors:
+//     Lukhnos Liu (@lukhnos) @ OpenVanilla
+//     Shiki Suen (@ShikiSuen) @ vChewing
 //
 // Permission is hereby granted, free of charge, to any person
 // obtaining a copy of this software and associated documentation
diff --git a/Source/CandidateUI/VTHorizontalCandidateView.m b/Source/CandidateUI/VTHorizontalCandidateView.m
index 765d0fc1..528928d0 100644
--- a/Source/CandidateUI/VTHorizontalCandidateView.m
+++ b/Source/CandidateUI/VTHorizontalCandidateView.m
@@ -1,7 +1,12 @@
 //
 // VTHorizontalCandidateView.m
 //
-// Copyright (c) 2012 Lukhnos D. Liu (http://lukhnos.org)
+// Copyright (c) 2021-2022 The vChewing Project.
+// Copyright (c) 2011-2022 The OpenVanilla Project.
+//
+// Contributors:
+//     Lukhnos Liu (@lukhnos) @ OpenVanilla
+//     Shiki Suen (@ShikiSuen) @ vChewing
 //
 // Permission is hereby granted, free of charge, to any person
 // obtaining a copy of this software and associated documentation
diff --git a/Source/InputMethodController.h b/Source/InputMethodController.h
index c595c7af..e8d5b103 100644
--- a/Source/InputMethodController.h
+++ b/Source/InputMethodController.h
@@ -1,11 +1,15 @@
 //
 // InputMethodController.h
 //
-// Copyright (c) 2021 The vChewing Project.
+// Copyright (c) 2021-2022 The vChewing Project.
+// Copyright (c) 2011-2022 The OpenVanilla Project.
 //
 // Contributors:
-//     Mengjuei Hsieh (@mjhsieh)
-//     Weizhong Yang (@zonble)
+//     Mengjuei Hsieh (@mjhsieh) @ OpenVanilla
+//     Weizhong Yang (@zonble) @ OpenVanilla
+//     Lukhnos Liu (@lukhnos) @ OpenVanilla
+//     Hiraku Wang (@hirakujira) @ vChewing
+//     Shiki Suen (@ShikiSuen) @ vChewing
 //
 // Based on the Syrup Project and the Formosana Library
 // by Lukhnos Liu (@lukhnos).
diff --git a/Source/InputMethodController.mm b/Source/InputMethodController.mm
index 13ef4400..4606d272 100644
--- a/Source/InputMethodController.mm
+++ b/Source/InputMethodController.mm
@@ -1,11 +1,15 @@
 //
 // InputMethodController.m
 //
-// Copyright (c) 2021 The vChewing Project.
+// Copyright (c) 2021-2022 The vChewing Project.
+// Copyright (c) 2011-2022 The OpenVanilla Project.
 //
 // Contributors:
-//     Mengjuei Hsieh (@mjhsieh)
-//     Weizhong Yang (@zonble)
+//     Mengjuei Hsieh (@mjhsieh) @ OpenVanilla
+//     Weizhong Yang (@zonble) @ OpenVanilla
+//     Lukhnos Liu (@lukhnos) @ OpenVanilla
+//     Hiraku Wang (@hirakujira) @ vChewing
+//     Shiki Suen (@ShikiSuen) @ vChewing
 //
 // Based on the Syrup Project and the Formosana Library
 // by Lukhnos Liu (@lukhnos).
diff --git a/Source/Installer/AppDelegate.h b/Source/Installer/AppDelegate.h
index d493a01d..f6a1da40 100644
--- a/Source/Installer/AppDelegate.h
+++ b/Source/Installer/AppDelegate.h
@@ -1,7 +1,12 @@
 //
 // AppDelegate.h
 //
-// Copyright (c) 2011-2012 The vChewing Project.
+// Copyright (c) 2021-2022 The vChewing Project.
+// Copyright (c) 2011-2022 The OpenVanilla Project.
+//
+// Contributors:
+//     Lukhnos Liu (@lukhnos) @ OpenVanilla
+//     Shiki Suen (@ShikiSuen) @ vChewing
 //
 // Permission is hereby granted, free of charge, to any person
 // obtaining a copy of this software and associated documentation
diff --git a/Source/Installer/AppDelegate.m b/Source/Installer/AppDelegate.m
index dd944159..7f43d2ef 100644
--- a/Source/Installer/AppDelegate.m
+++ b/Source/Installer/AppDelegate.m
@@ -1,7 +1,12 @@
 //
 // AppDelegate.m
 //
-// Copyright (c) 2011-2012 The vChewing Project.
+// Copyright (c) 2021-2022 The vChewing Project.
+// Copyright (c) 2011-2022 The OpenVanilla Project.
+//
+// Contributors:
+//     Lukhnos Liu (@lukhnos) @ OpenVanilla
+//     Shiki Suen (@ShikiSuen) @ vChewing
 //
 // Permission is hereby granted, free of charge, to any person
 // obtaining a copy of this software and associated documentation
diff --git a/Source/UserOverrideModel.cpp b/Source/UserOverrideModel.cpp
index aa0a0b4d..6c10ebea 100644
--- a/Source/UserOverrideModel.cpp
+++ b/Source/UserOverrideModel.cpp
@@ -1,7 +1,8 @@
 //
 // UserOverrideModel.cpp
 //
-// Copyright (c) 2017 The vChewing Project.
+// Copyright (c) 2021-2022 The vChewing Project.
+// Copyright (c) 2011-2022 The OpenVanilla Project.
 //
 // Permission is hereby granted, free of charge, to any person
 // obtaining a copy of this software and associated documentation
diff --git a/Source/UserOverrideModel.h b/Source/UserOverrideModel.h
index c0f700b4..f582583e 100644
--- a/Source/UserOverrideModel.h
+++ b/Source/UserOverrideModel.h
@@ -1,7 +1,8 @@
 //
 // UserOverrideModel.h
 //
-// Copyright (c) 2017 The vChewing Project.
+// Copyright (c) 2021-2022 The vChewing Project.
+// Copyright (c) 2011-2022 The OpenVanilla Project.
 //
 // Permission is hereby granted, free of charge, to any person
 // obtaining a copy of this software and associated documentation
diff --git a/Source/main.m b/Source/main.m
index 1dd9cdff..6f1da160 100644
--- a/Source/main.m
+++ b/Source/main.m
@@ -1,11 +1,15 @@
 //
 // main.m
 //
-// Copyright (c) 2021 The vChewing Project.
+// Copyright (c) 2021-2022 The vChewing Project.
+// Copyright (c) 2011-2022 The OpenVanilla Project.
 //
 // Contributors:
-//     Mengjuei Hsieh (@mjhsieh)
-//     Weizhong Yang (@zonble)
+//     Mengjuei Hsieh (@mjhsieh) @ OpenVanilla
+//     Weizhong Yang (@zonble) @ OpenVanilla
+//     Lukhnos Liu (@lukhnos) @ OpenVanilla
+//     Hiraku Wang (@hirakujira) @ vChewing
+//     Shiki Suen (@ShikiSuen) @ vChewing
 //
 // Based on the Syrup Project and the Formosana Library
 // by Lukhnos Liu (@lukhnos).