diff --git a/Casks/i/ishowu-instant.rb b/Casks/i/ishowu-instant.rb
index 505447f1f8..9ce12aacdc 100644
--- a/Casks/i/ishowu-instant.rb
+++ b/Casks/i/ishowu-instant.rb
@@ -1,6 +1,6 @@
 cask "ishowu-instant" do
-  version "1.4.17"
-  sha256 "369815d9361f43182a19ffac97b7f6f70e7223738990674272b64d3c532f908a"
+  version "1.4.18"
+  sha256 "9d6913ae841b868f4a6a3aa416b1b72d1fa2098f601381a7df909b8ac21afe72"
 
   url "https://www.shinywhitebox.com/downloads/instant/iShowU_Instant_#{version}.dmg"
   name "iShowU Instant"
@@ -12,7 +12,19 @@ cask "ishowu-instant" do
     strategy :sparkle, &:short_version
   end
 
+  auto_updates true
   depends_on macos: ">= :mojave"
 
   app "iShowU Instant.app"
+
+  zap trash: [
+    "~/Library/Application Support/iShowU Instant",
+    "~/Library/Application Support/iShowU Studio",
+    "~/Library/Caches/com.shinywhitebox.iShowU-Instant",
+    "~/Library/HTTPStorages/com.shinywhitebox.iShowU-Instant",
+    "~/Library/HTTPStorages/com.shinywhitebox.iShowU-Instant.binarycookies",
+    "~/Library/Preferences/com.shinywhitebox.iShowU-Instant.plist",
+    "~/Library/Saved Application State/com.shinywhitebox.iShowU-Instant.savedState",
+    "~/Library/WebKit/com.shinywhitebox.iShowU-Instant",
+  ]
 end