diff --git a/LICENSE.txt b/LICENSE.txt
index 3eb0b835..b1ca8d9c 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2011-2022 Mengjuei Hsieh et al.
+Copyright (c) 2011-2023 Mengjuei Hsieh et al.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/Source/Base.lproj/InfoPlist.strings b/Source/Base.lproj/InfoPlist.strings
index 9414dcd8..45736c93 100644
--- a/Source/Base.lproj/InfoPlist.strings
+++ b/Source/Base.lproj/InfoPlist.strings
@@ -1,5 +1,5 @@
 CFBundleName = "McBopomofo";
 CFBundleDisplayName = "McBopomofo";
-NSHumanReadableCopyright = "Copyright © 2011-2022 Mengjuei Hsieh et al.\nAll Rights Reserved.";
+NSHumanReadableCopyright = "Copyright © 2011-2023 Mengjuei Hsieh et al.\nAll Rights Reserved.";
 "org.openvanilla.inputmethod.McBopomofo.Bopomofo" = "Bopomofo";
 "org.openvanilla.inputmethod.McBopomofo.PlainBopomofo" = "Plain Bopomofo";
diff --git a/Source/Installer/en.lproj/InfoPlist.strings b/Source/Installer/en.lproj/InfoPlist.strings
index ac41b639..e6bf056c 100644
--- a/Source/Installer/en.lproj/InfoPlist.strings
+++ b/Source/Installer/en.lproj/InfoPlist.strings
@@ -1,4 +1,4 @@
 /* Localized versions of Info.plist keys */
 
 CFBundleName = "Install McBopomofo";
-NSHumanReadableCopyright = "Copyright © 2011-2022 Mengjuei Hsieh et al.\nAll Rights Reserved.";
+NSHumanReadableCopyright = "Copyright © 2011-2023 Mengjuei Hsieh et al.\nAll Rights Reserved.";
diff --git a/Source/Installer/en.lproj/License.rtf b/Source/Installer/en.lproj/License.rtf
index 00e30631..0aa0da30 100644
--- a/Source/Installer/en.lproj/License.rtf
+++ b/Source/Installer/en.lproj/License.rtf
@@ -8,7 +8,7 @@
 \f0\b\fs36 \cf0 McBopomofo License Agreement
 \f1\b0\fs24 \
 \
-Copyright \'a9 2011-2022 Mengjuei Hsieh et al.\
+Copyright \'a9 2011-2023 Mengjuei Hsieh et al.\
 \
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the \'93Software\'94), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:\
 \
diff --git a/Source/Installer/zh-Hant.lproj/InfoPlist.strings b/Source/Installer/zh-Hant.lproj/InfoPlist.strings
index b4396f18..6ce4ae62 100644
--- a/Source/Installer/zh-Hant.lproj/InfoPlist.strings
+++ b/Source/Installer/zh-Hant.lproj/InfoPlist.strings
@@ -1,5 +1,5 @@
 /* Localized versions of Info.plist keys */
 
 CFBundleName = "安裝小麥注音";
-NSHumanReadableCopyright = "Copyright © 2011-2022 Mengjuei Hsieh et al.\nAll Rights Reserved.";
+NSHumanReadableCopyright = "Copyright © 2011-2023 Mengjuei Hsieh et al.\nAll Rights Reserved.";
 
diff --git a/Source/Installer/zh-Hant.lproj/License.rtf b/Source/Installer/zh-Hant.lproj/License.rtf
index 3cbcd00e..36bd0f3c 100644
--- a/Source/Installer/zh-Hant.lproj/License.rtf
+++ b/Source/Installer/zh-Hant.lproj/License.rtf
@@ -9,10 +9,10 @@
 \f0\b\fs36 \cf0 McBopomofo License Agreement
 \f1\b0\fs24 \
 \
-Copyright \'a9 2011-2022 Mengjuei Hsieh et al.\
+Copyright \'a9 2011-2023 Mengjuei Hsieh et al.\
 
 \f2 \cf0 \'b5\'db\'a7\'40\'c5\'76\'a7\'51\'a9\'d2\'a6\'b3
-\f1  \'a9 2011-2022 Mengjuei Hsieh 
+\f1  \'a9 2011-2023 Mengjuei Hsieh 
 \f2 \'b5\'a5\'a4\'48
 \f1 \
 \
diff --git a/Source/McBopomofo-Info.plist b/Source/McBopomofo-Info.plist
index 142a5ed9..bd137134 100644
--- a/Source/McBopomofo-Info.plist
+++ b/Source/McBopomofo-Info.plist
@@ -104,7 +104,7 @@
 	<key>LSUIElement</key>
 	<true/>
 	<key>NSHumanReadableCopyright</key>
-	<string>Copyright © 2011-2022 Mengjuei Hsieh et al.</string>
+	<string>Copyright © 2011-2023 Mengjuei Hsieh et al.</string>
 	<key>NSMainNibFile</key>
 	<string>MainMenu</string>
 	<key>NSPrincipalClass</key>
diff --git a/Source/en.lproj/InfoPlist.strings b/Source/en.lproj/InfoPlist.strings
index 6aa2f186..91663ddb 100644
--- a/Source/en.lproj/InfoPlist.strings
+++ b/Source/en.lproj/InfoPlist.strings
@@ -1,6 +1,6 @@
 CFBundleName = "McBopomofo";
 CFBundleDisplayName = "McBopomofo";
-NSHumanReadableCopyright = "Copyright © 2011-2022 Mengjuei Hsieh et al.\nAll Rights Reserved.";
+NSHumanReadableCopyright = "Copyright © 2011-2023 Mengjuei Hsieh et al.\nAll Rights Reserved.";
 "org.openvanilla.inputmethod.McBopomofo.Bopomofo" = "Bopomofo";
 "org.openvanilla.inputmethod.McBopomofo.PlainBopomofo" = "Plain Bopomofo";
 
diff --git a/Source/zh-Hant.lproj/InfoPlist.strings b/Source/zh-Hant.lproj/InfoPlist.strings
index 3e4b8306..642a8811 100644
--- a/Source/zh-Hant.lproj/InfoPlist.strings
+++ b/Source/zh-Hant.lproj/InfoPlist.strings
@@ -1,5 +1,5 @@
 CFBundleName = "小麥注音";
 CFBundleDisplayName = "小麥注音";
-NSHumanReadableCopyright = "Copyright © 2011-2022 Mengjuei Hsieh et al.\nAll Rights Reserved.";
+NSHumanReadableCopyright = "Copyright © 2011-2023 Mengjuei Hsieh et al.\nAll Rights Reserved.";
 "org.openvanilla.inputmethod.McBopomofo.Bopomofo" = "小麥注音";
 "org.openvanilla.inputmethod.McBopomofo.PlainBopomofo" = "傳統注音";