diff --git a/Casks/freefilesync.rb b/Casks/freefilesync.rb
index 77c476bc7b..18dbd5249e 100644
--- a/Casks/freefilesync.rb
+++ b/Casks/freefilesync.rb
@@ -1,6 +1,6 @@
 cask 'freefilesync' do
-  version '8.3'
-  sha256 '1148cff841216da38a2d07b522d32709b6274760aa47dea9760ba4e3dd93f3c3'
+  version '8.4'
+  sha256 '59cc3d42e16fbf5157d4af4fd7be66b02515c71cd673fbb160960152f746806c'
 
   url "http://www.freefilesync.org/download/FreeFileSync_#{version}_Mac_OS_X.zip",
       referer: 'https://www.freefilesync.org/download.php'