diff --git a/README.md b/README.md
index 51a1b8d..94878fd 100644
--- a/README.md
+++ b/README.md
@@ -80,6 +80,11 @@ jobs:
     # Default: false
     error-on-no-successful-workflow: ''
 
+    # The type of event to check for the last successful commit corresponding to that workflow-id, e.g. push, pull-request, release etc.
+    #
+    # Default: push
+    last-successful-event: ''
+
     # The path where your repository is. This is only required for cases where the repository code is checked out or moved to a specific path.
     #
     # Default: .
diff --git a/action.yml b/action.yml
index 2b28796..f30a595 100644
--- a/action.yml
+++ b/action.yml
@@ -12,7 +12,7 @@ inputs:
     description: "By default, if no successful workflow is found on the main branch to determine the SHA, we will log a warning and use HEAD~1. Enable this option to error and exit instead."
     default: "false"
   last-successful-event:
-    description: "The type of event to check for the last successful commit corresponding to that workflow-id, E.g. push, pull-request, release etc"
+    description: "The type of event to check for the last successful commit corresponding to that workflow-id, e.g. push, pull-request, release etc"
     default: "push"
   working-directory:
     description: "The directory where your repository is located"
diff --git a/dist/index.js b/dist/index.js
index 8bcb46a..4dd1507 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -62890,7 +62890,8 @@ async function findSuccessfulCommit(workflow_id, run_id, owner, repo, branch, la
   const shas = await octokit.request(`GET /repos/${owner}/${repo}/actions/workflows/${workflow_id}/runs`, {
     owner,
     repo,
-    branch,
+    // on non-push workflow runs we do not have branch property
+    branch: lastSuccessfulEvent !== 'push' ? undefined : branch,
     workflow_id,
     event: lastSuccessfulEvent,
     status: 'success'
diff --git a/find-successful-workflow.js b/find-successful-workflow.js
index d4b17c3..ba5b85f 100644
--- a/find-successful-workflow.js
+++ b/find-successful-workflow.js
@@ -97,8 +97,8 @@ async function findSuccessfulCommit(workflow_id, run_id, owner, repo, branch, la
   const shas = await octokit.request(`GET /repos/${owner}/${repo}/actions/workflows/${workflow_id}/runs`, {
     owner,
     repo,
-    // on release workflow runs do not have branch property
-    branch: lastSuccessfulEvent === 'release' ? undefined : branch,
+    // on non-push workflow runs we do not have branch property
+    branch: lastSuccessfulEvent !== 'push' ? undefined : branch,
     workflow_id,
     event: lastSuccessfulEvent,
     status: 'success'
diff --git a/package-lock.json b/package-lock.json
index b743bb1..7698a52 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,11 +1,11 @@
 {
   "name": "nx-set-shas",
-  "version": "2.2.2",
+  "version": "2.2.3",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
-      "version": "2.2.2",
+      "version": "2.2.3",
       "license": "MIT",
       "dependencies": {
         "@actions/core": "^1.4.0",
diff --git a/package.json b/package.json
index 23e1342..ff0a503 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "private": true,
-  "version": "2.2.2",
+  "version": "2.2.3",
   "license": "MIT",
   "description": "This package.json is here purely to control the version of the Action, in combination with https://github.com/JamesHenry/publish-shell-action",
   "scripts": {