diff --git a/Readme.md b/Readme.md
index fb0b86da..59275cc3 100644
--- a/Readme.md
+++ b/Readme.md
@@ -29,8 +29,15 @@ on:
   pull_request:
     types: [opened, edited, synchronize, reopened]
 ```
+or 
+[here](https://docs.github.com/en/free-pro-team@latest/actions/reference/events-that-trigger-workflows#pull_request_target). 
+```yaml
+on:
+  pull_request_target:
+    types: [opened, edited, synchronize, reopened]
+```
 
-Triggering the action on anything other than `pull_request` will cause a failure.
+Triggering the action on anything other than `pull_request` or `pull_request_target` will cause a failure.
 
 ## License
 The scripts and documentation in this project are released under the [MIT License](./LICENSE)
diff --git a/index.js b/index.js
index 8b16a4dc..f180b723 100644
--- a/index.js
+++ b/index.js
@@ -1,7 +1,7 @@
 const core = require('@actions/core');
 const github = require('@actions/github');
 
-const validEvent = ['pull_request'];
+const validEvent = ['pull_request','pull_request_target'];
 
 function validateTitlePrefix(title, prefix, caseSensitive) {
     if (!caseSensitive) {