diff --git a/public/vendor/Sunsetter b/public/vendor/Sunsetter
index 6a27cf2b2f..4a0e4133c0 160000
--- a/public/vendor/Sunsetter
+++ b/public/vendor/Sunsetter
@@ -1 +1 @@
-Subproject commit 6a27cf2b2fb819f22378462927a929a4c012c454
+Subproject commit 4a0e4133c0e7121e180f07d1c7e914d5e1bd4a9a
diff --git a/ui/analyse/src/ceval/sunsetterProtocol.js b/ui/analyse/src/ceval/sunsetterProtocol.js
index 6e8a826533..4961b88074 100644
--- a/ui/analyse/src/ceval/sunsetterProtocol.js
+++ b/ui/analyse/src/ceval/sunsetterProtocol.js
@@ -25,7 +25,7 @@ module.exports = function(worker, opts) {
 
       // transform mate scores
       if (Math.abs(cp) > 20000) {
-        var mate = Math.sign(cp) * Math.floor(30000 - Math.abs(cp));
+        var mate = Math.sign(cp) * Math.floor(16384 - Math.abs(cp/2));
         cp = undefined;
       }