diff --git a/macos/Sources/Features/Update/UpdateDelegate.swift b/macos/Sources/Features/Update/UpdateDelegate.swift
index c116432df..c462e180d 100644
--- a/macos/Sources/Features/Update/UpdateDelegate.swift
+++ b/macos/Sources/Features/Update/UpdateDelegate.swift
@@ -1,4 +1,5 @@
 import Sparkle
+import Cocoa
 
 class UpdaterDelegate: NSObject, SPUUpdaterDelegate {
     func feedURLString(for updater: SPUUpdater) -> String? {
@@ -8,4 +9,12 @@ class UpdaterDelegate: NSObject, SPUUpdaterDelegate {
         // tip appcast URL since it is all we support.
         return "https://tip.files.ghostty.dev/appcast.xml"
     }
+    
+    func updaterWillRelaunchApplication(_ updater: SPUUpdater) {
+        // When the updater is relaunching the application we want to get macOS
+        // to invalidate and re-encode all of our restorable state so that when
+        // we relaunch it uses it.
+        NSApp.invalidateRestorableState()
+        for window in NSApp.windows { window.invalidateRestorableState() }
+    }
 }