diff --git a/Casks/k/klayout.rb b/Casks/k/klayout.rb
index c530e626e2..4eee365133 100644
--- a/Casks/k/klayout.rb
+++ b/Casks/k/klayout.rb
@@ -24,8 +24,8 @@ cask "klayout" do
     end
   end
   on_monterey do
-    version "0.28.15"
-    sha256 "fb2fe78a2d71822bf36031dec04e17444afded27a4c373628fa9e0197673ebd3"
+    version "0.28.17"
+    sha256 "deba4653e9efb7c9e7cce7f3a609e796fa6d815014ecd4316ba46dbb330c2abb"
 
     url "https://www.klayout.org/downloads/MacOS/HW-klayout-#{version}-macOS-Monterey-1-qt5Brew-RsysPhb311.dmg",
         verified: "klayout.org/downloads/MacOS/"
@@ -36,8 +36,8 @@ cask "klayout" do
     end
   end
   on_ventura do
-    version "0.28.15"
-    sha256 "6c72dcf8d757f688671c837d34c4a192340d7e07b7cda751d228f0db296ccd1c"
+    version "0.28.17"
+    sha256 "01230beb69df62960e403db198770b889d464b2487c85231ca0392d833da5695"
 
     url "https://www.klayout.org/downloads/MacOS/HW-klayout-#{version}-macOS-Ventura-1-qt5Brew-RsysPhb311.dmg",
         verified: "klayout.org/downloads/MacOS/"
@@ -48,10 +48,10 @@ cask "klayout" do
     end
   end
   on_sonoma :or_newer do
-    version "0.28.15"
-    sha256 "6c72dcf8d757f688671c837d34c4a192340d7e07b7cda751d228f0db296ccd1c"
+    version "0.28.17"
+    sha256 "786473a0b3ef99ce0b62d1c20327f71d432e47b151deb373ce351afea6473316"
 
-    url "https://www.klayout.org/downloads/MacOS/HW-klayout-#{version}-macOS-Ventura-1-qt5Brew-RsysPhb311.dmg",
+    url "https://www.klayout.org/downloads/MacOS/HW-klayout-#{version}-macOS-Sonoma-1-qt5Brew-RsysPhb311.dmg",
         verified: "klayout.org/downloads/MacOS/"
 
     livecheck do