diff --git a/README.md b/README.md
index 9d4a282..452b870 100644
--- a/README.md
+++ b/README.md
@@ -20,10 +20,16 @@ Sends a critical PagerDuty alert, e.g. on action failure.
 **Optional:** a `dedup_key` for your alert. This will enable PagerDuty to coalesce multiple alerts into one.
 More documentation is available [here](https://developer.pagerduty.com/docs/events-api-v2/trigger-events/).
 
+`event-type`
+
+**Optional:** Can be used to resolve an alert when used together with `pagerduty-dedup-key`.
+
 ## Example usage
 
 In your `steps`:
 
+### Trigger a PagerDuty alert
+
 ```yaml
 - name: Send PagerDuty alert on failure
   if: ${{ failure() }}
@@ -32,3 +38,14 @@ In your `steps`:
     pagerduty-integration-key: '${{ secrets.PAGERDUTY_INTEGRATION_KEY }}'
     pagerduty-dedup-key: github_workflow_failed
 ```
+
+### Resolve a PagerDuty alert
+
+```yaml
+- name: Resolve PagerDuty alert when CI succeeds
+  uses: Entle/action-pagerduty-alert@0.5.0
+  with:
+    pagerduty-integration-key: '${{ secrets.PAGERDUTY_INTEGRATION_KEY }}'
+    pagerduty-dedup-key: github_workflow_failed
+    event-type: resolve
+```
diff --git a/action.yml b/action.yml
index a9ca183..d6b5ab9 100644
--- a/action.yml
+++ b/action.yml
@@ -7,9 +7,13 @@ inputs:
   pagerduty-dedup-key:
     description: 'The key used to correlate PagerDuty triggers, acknowledges, and resolves for the same alert.'
     required: false
+  event-type:
+    description: 'Trigger or resolve this alert? Default is trigger (Valid values: trigger, resolve)'
+    default: 'trigger'
+    required: false
 runs:
   using: 'node12'
   main: 'index.js'
 branding:
   icon: 'alert-triangle'
-  color: 'red'
\ No newline at end of file
+  color: 'red'
diff --git a/index.js b/index.js
index 46da89c..f24c9fd 100644
--- a/index.js
+++ b/index.js
@@ -22,6 +22,7 @@ async function sendAlert(alert) {
 // Run the action
 try {
   const integrationKey = core.getInput('pagerduty-integration-key');
+  const eventAction = core.getInput('event-type');
 
   let alert = {
     payload: {
@@ -37,7 +38,7 @@ try {
       },
     },
     routing_key: integrationKey,
-    event_action: 'trigger',
+    event_action: eventAction,
   };
   const dedupKey = core.getInput('pagerduty-dedup-key');
   if (dedupKey != '') {