diff --git a/LICENSE-CHS.txt b/LICENSE-CHS.txt
index 889ba222..b0331e7f 100644
--- a/LICENSE-CHS.txt
+++ b/LICENSE-CHS.txt
@@ -21,3 +21,30 @@ $ 在本专案内用到了下述第三方模组:
 - SwiftUI Preferences UI Framework: (c) 2018 and onwards Sindre Sorhus (MIT License).
 - SwiftUI VDKComboBox: (c) 2022 and onwards Bryan Jones (CC BY-SA 4.0)
 - Note that Hotenka Chinese Converter is rewritten by Shiki Suen (using Swift) from Nick Chen's Objective-C library "NCChineseConverter" (MIT License).
+
+########################################################
+## UPSTREAM LICENSE PROVIDED BELOW INTACT FOR REFERENCE
+## https://github.com/openvanilla/McBopomofo/blob/5b319f491142c1170a3607e28ab4e91c22861998/LICENSE.txt
+########################################################
+
+MIT License
+
+Copyright (c) 2011-2022 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
+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:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/LICENSE-CHT.txt b/LICENSE-CHT.txt
index 471669b7..aa373179 100644
--- a/LICENSE-CHT.txt
+++ b/LICENSE-CHT.txt
@@ -21,3 +21,30 @@ $ 在該專案內用到了下述第三方:
 - SwiftUI Preferences UI Framework: (c) 2018 and onwards Sindre Sorhus (MIT License).
 - SwiftUI VDKComboBox: (c) 2022 and onwards Bryan Jones (CC BY-SA 4.0)
 - Note that Hotenka Chinese Converter is rewritten by Shiki Suen (using Swift) from Nick Chen's Objective-C library "NCChineseConverter" (MIT License).
+
+########################################################
+## UPSTREAM LICENSE PROVIDED BELOW INTACT FOR REFERENCE
+## https://github.com/openvanilla/McBopomofo/blob/5b319f491142c1170a3607e28ab4e91c22861998/LICENSE.txt
+########################################################
+
+MIT License
+
+Copyright (c) 2011-2022 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
+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:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/LICENSE-JPN.txt b/LICENSE-JPN.txt
index 7870b848..85c2bbe1 100644
--- a/LICENSE-JPN.txt
+++ b/LICENSE-JPN.txt
@@ -21,3 +21,30 @@ $ 他の用いたモジュール:
 - SwiftUI Preferences UI Framework: (c) 2018 and onwards Sindre Sorhus (MIT License).
 - SwiftUI VDKComboBox: (c) 2022 and onwards Bryan Jones (CC BY-SA 4.0)
 - Note that Hotenka Chinese Converter is rewritten by Shiki Suen (using Swift) from Nick Chen's Objective-C library "NCChineseConverter" (MIT License).
+
+########################################################
+## UPSTREAM LICENSE PROVIDED BELOW INTACT FOR REFERENCE
+## https://github.com/openvanilla/McBopomofo/blob/5b319f491142c1170a3607e28ab4e91c22861998/LICENSE.txt
+########################################################
+
+MIT License
+
+Copyright (c) 2011-2022 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
+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:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/LICENSE.txt b/LICENSE.txt
index aed47104..fd25a2a2 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -21,3 +21,30 @@ $ 3rd-Party Modules Used:
 - SwiftUI Preferences UI Framework: (c) 2018 and onwards Sindre Sorhus (MIT License).
 - SwiftUI VDKComboBox: (c) 2022 and onwards Bryan Jones (CC BY-SA 4.0)
 - Note that Hotenka Chinese Converter is rewritten by Shiki Suen (using Swift) from Nick Chen's Objective-C library "NCChineseConverter" (MIT License).
+
+########################################################
+## UPSTREAM LICENSE PROVIDED BELOW INTACT FOR REFERENCE
+## https://github.com/openvanilla/McBopomofo/blob/5b319f491142c1170a3607e28ab4e91c22861998/LICENSE.txt
+########################################################
+
+MIT License
+
+Copyright (c) 2011-2022 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
+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:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.