diff --git a/Casks/m/mkvtoolnix.rb b/Casks/m/mkvtoolnix.rb
index 82c7ebce2d6f4..2a1b5b4e17da9 100644
--- a/Casks/m/mkvtoolnix.rb
+++ b/Casks/m/mkvtoolnix.rb
@@ -16,8 +16,8 @@
     sha256 "bb6d0ba4e0052b2831de0ae29ef3d0d4c7b4d0933b258455c248c1a1c5f913a0"
   end
   on_catalina :or_newer do
-    version "83.0"
-    sha256 "6eec84ff897ce01fcbcedc76caf46c85eac5fedc9ccfba6693f5a7ed9a11a11a"
+    version "84.0"
+    sha256 "a097ec27e66f33912ecac4d5632e784a7174c74876aa1c8134240d3410541fd3"
   end
 
   url "https://mkvtoolnix.download/macos/MKVToolNix-#{version}.dmg"