diff --git a/.gitleaks.toml b/.gitleaks.toml
index 4b2c445c1..606887140 100644
--- a/.gitleaks.toml
+++ b/.gitleaks.toml
@@ -12,6 +12,9 @@ regexes = [
   '''https?://matrix\.lotusguild\.org''',
   '''https?://code\.lotusguild\.org/api/packages/LotusGuild/npm/''',
   '''matrix\.lotusguild\.org''',
+  # Lotus Chat desktop updater's minisign PUBLIC key (published in the
+  # cinny-desktop README); utils/updateErrors.ts verifies Linux downloads with it.
+  '''RWRZZdyii05/NUcz337A5SAbiZK\+NPVDWuiL2mM5Jk1p/LfRmNfiZ/6l''',
 ]
 paths = [
   '''config\.json''',