diff --git a/Casks/o/onyx.rb b/Casks/o/onyx.rb
index f597d58c8d4c..ff944bf1b470 100644
--- a/Casks/o/onyx.rb
+++ b/Casks/o/onyx.rb
@@ -41,11 +41,16 @@
 
     url "https://www.titanium-software.fr/download/13/OnyX.dmg"
   end
-  on_sonoma :or_newer do
+  on_sonoma do
     version "4.5.9"
 
     url "https://www.titanium-software.fr/download/14/OnyX.dmg"
   end
+  on_sequoia :or_newer do
+    version "4.6.5"
+
+    url "https://www.titanium-software.fr/download/15/OnyX.dmg"
+  end
 
   name "OnyX"
   desc "Verify system files structure, run miscellaneous maintenance and more"
@@ -66,6 +71,7 @@
     :monterey,
     :ventura,
     :sonoma,
+    :sequoia,
   ]
 
   app "OnyX.app"