diff --git a/Casks/p/polymail.rb b/Casks/p/polymail.rb
index ecc2671b48..c5dff446d8 100644
--- a/Casks/p/polymail.rb
+++ b/Casks/p/polymail.rb
@@ -1,9 +1,9 @@
 cask "polymail" do
   arch arm: "-arm64"
 
-  version "2.3.3"
-  sha256 arm:   "d84f58f34d48b1de64fc1135561c6db2d7051f5cfefce390a0d226d1cc24277c",
-         intel: "59f6442fe478738d90177de8dc239752594293fb2105af0455074900f0765c79"
+  version "2.3.4"
+  sha256 arm:   "804d89ac47bc39af383fdff63ae8d2c72af070624b7fecb7c84de1abb2f25d53",
+         intel: "48547e91583ab34d750fb27c1b207c97a7dc01a227e2603098f2a3915e6ee5b5"
 
   url "https://sparkle-updater.polymail.io/macos#{arch}/builds/Polymail-v#{version}.zip"
   name "Polymail"