diff --git a/macosx/Info.plist b/macosx/Info.plist
index 6ff0b2a8a..6d5a3b7f7 100644
--- a/macosx/Info.plist
+++ b/macosx/Info.plist
@@ -70,7 +70,7 @@
 	<key>NSAppleScriptEnabled</key>
 	<string>YES</string>
 	<key>NSHumanReadableCopyright</key>
-	<string>Copyright © 2005-2022 The Transmission Project</string>
+	<string>Copyright © 2005-2023 The Transmission Project</string>
 	<key>NSMainNibFile</key>
 	<string>MainMenu</string>
 	<key>NSPrincipalClass</key>
diff --git a/macosx/Info.plist.in b/macosx/Info.plist.in
index 7fd92dabf..9304f2475 100644
--- a/macosx/Info.plist.in
+++ b/macosx/Info.plist.in
@@ -74,7 +74,7 @@
 		<true/>
 	</dict>
 	<key>NSHumanReadableCopyright</key>
-	<string>Copyright © 2005-2022 The Transmission Project</string>
+	<string>Copyright © 2005-2023 The Transmission Project</string>
 	<key>NSMainNibFile</key>
 	<string>MainMenu</string>
 	<key>NSPrincipalClass</key>
diff --git a/macosx/QuickLookPlugin/Info.plist.in b/macosx/QuickLookPlugin/Info.plist.in
index 036217bf0..5f3462ca4 100644
--- a/macosx/QuickLookPlugin/Info.plist.in
+++ b/macosx/QuickLookPlugin/Info.plist.in
@@ -47,7 +47,7 @@
 	<key>CFPlugInUnloadFunction</key>
 	<string></string>
 	<key>NSHumanReadableCopyright</key>
-	<string>Copyright © 2005-2022 The Transmission Project</string>
+	<string>Copyright © 2005-2023 The Transmission Project</string>
 	<key>QLNeedsToBeRunInMainThread</key>
 	<false/>
 	<key>QLPreviewHeight</key>
diff --git a/macosx/QuickLookPlugin/QuickLookPlugin-Info.plist b/macosx/QuickLookPlugin/QuickLookPlugin-Info.plist
index c8d80c725..19553c73d 100644
--- a/macosx/QuickLookPlugin/QuickLookPlugin-Info.plist
+++ b/macosx/QuickLookPlugin/QuickLookPlugin-Info.plist
@@ -49,7 +49,7 @@
 	<key>CFPlugInUnloadFunction</key>
 	<string></string>
 	<key>NSHumanReadableCopyright</key>
-	<string>Copyright © 2005-2022 The Transmission Project</string>
+	<string>Copyright © 2005-2023 The Transmission Project</string>
 	<key>QLNeedsToBeRunInMainThread</key>
 	<false/>
 	<key>QLPreviewHeight</key>
diff --git a/macosx/nl.lproj/InfoPlist.strings b/macosx/nl.lproj/InfoPlist.strings
index a1a602dfe..4eb2e0100 100644
--- a/macosx/nl.lproj/InfoPlist.strings
+++ b/macosx/nl.lproj/InfoPlist.strings
@@ -1,3 +1,3 @@
 /* Localized versions of Info.plist keys */
 
-NSHumanReadableCopyright = "Copyright © 2005-2022 The Transmission Project";
+NSHumanReadableCopyright = "Copyright © 2005-2023 The Transmission Project";
diff --git a/qt/LicenseDialog.ui b/qt/LicenseDialog.ui
index d9c62642c..47ab646fb 100644
--- a/qt/LicenseDialog.ui
+++ b/qt/LicenseDialog.ui
@@ -20,7 +20,7 @@
       <bool>true</bool>
      </property>
      <property name="plainText">
-      <string notr="true">Copyright 2005-2022. All code is copyrighted by the respective authors.
+      <string notr="true">Copyright 2005-2023. All code is copyrighted by the respective authors.
 
 
 In addition, linking to and/or using OpenSSL is allowed.