diff --git a/tools/lammps-gui/lammps-gui.appdata.xml b/tools/lammps-gui/lammps-gui.appdata.xml
index 3061e973ea..c900213f4b 100644
--- a/tools/lammps-gui/lammps-gui.appdata.xml
+++ b/tools/lammps-gui/lammps-gui.appdata.xml
@@ -55,6 +55,11 @@
   </provides>
 
   <releases>
+    <release version="1.6.14" timestamp="1747828753">
+      <description>
+        Must set en_US.UTF-8 locale on macOS since it lacks support for C.UTF-8
+      </description>
+    </release>
     <release version="1.6.13" timestamp="1743734509">
       <description>
         Change working directory to user's home dir if initial directory is "/" or the Application folder