diff --git a/packages/@headlessui-react/CHANGELOG.md b/packages/@headlessui-react/CHANGELOG.md
index 6331be9bf6..d7701e00e3 100644
--- a/packages/@headlessui-react/CHANGELOG.md
+++ b/packages/@headlessui-react/CHANGELOG.md
@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Fix `<Popover.Button as={Fragment} />` crash ([#1889](https://github.com/tailwindlabs/headlessui/pull/1889))
 - Expose `close` function for `Menu` and `Menu.Item` components ([#1897](https://github.com/tailwindlabs/headlessui/pull/1897))
+- Fix `useOutsideClick`, add improvements for ShadowDOM ([#1914](https://github.com/tailwindlabs/headlessui/pull/1914))
 
 ### Added
 
diff --git a/packages/@headlessui-react/src/hooks/use-outside-click.ts b/packages/@headlessui-react/src/hooks/use-outside-click.ts
index 7f7360393b..1569d9cedc 100644
--- a/packages/@headlessui-react/src/hooks/use-outside-click.ts
+++ b/packages/@headlessui-react/src/hooks/use-outside-click.ts
@@ -60,7 +60,7 @@ export function useOutsideClick(
     }
 
     // Ignore if the target doesn't exist in the DOM anymore
-    if (!target.ownerDocument.documentElement.contains(target)) return
+    if (!target.getRootNode().contains(target)) return
 
     // Ignore if the target exists in one of the containers
     for (let container of _containers) {
diff --git a/packages/@headlessui-vue/CHANGELOG.md b/packages/@headlessui-vue/CHANGELOG.md
index 9d7c206212..20fac0e689 100644
--- a/packages/@headlessui-vue/CHANGELOG.md
+++ b/packages/@headlessui-vue/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Expose `close` function for `Menu` and `MenuItem` components ([#1897](https://github.com/tailwindlabs/headlessui/pull/1897))
+- Fix `useOutsideClick`, add improvements for ShadowDOM ([#1914](https://github.com/tailwindlabs/headlessui/pull/1914))
 
 ## [1.7.3] - 2022-09-30
 
diff --git a/packages/@headlessui-vue/src/hooks/use-outside-click.ts b/packages/@headlessui-vue/src/hooks/use-outside-click.ts
index b89fead59a..3e25ca49d8 100644
--- a/packages/@headlessui-vue/src/hooks/use-outside-click.ts
+++ b/packages/@headlessui-vue/src/hooks/use-outside-click.ts
@@ -30,7 +30,7 @@ export function useOutsideClick(
     }
 
     // Ignore if the target doesn't exist in the DOM anymore
-    if (!target.ownerDocument.documentElement.contains(target)) return
+    if (!target.getRootNode().contains(target)) return
 
     let _containers = (function resolve(containers): ContainerCollection {
       if (typeof containers === 'function') {