diff --git a/dist/index.js b/dist/index.js
index e1657f8..aed83be 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -498,8 +498,6 @@ function createPullRequest(inputs) {
                 else if (result.action == 'updated') {
                     outputs.set('pull-request-operation', 'updated');
                 }
-                // Deprecated
-                core.exportVariable('PULL_REQUEST_NUMBER', pull.number);
                 core.endGroup();
             }
             else {
diff --git a/src/create-pull-request.ts b/src/create-pull-request.ts
index 1705dcb..e0f690d 100644
--- a/src/create-pull-request.ts
+++ b/src/create-pull-request.ts
@@ -249,8 +249,6 @@ export async function createPullRequest(inputs: Inputs): Promise<void> {
       } else if (result.action == 'updated') {
         outputs.set('pull-request-operation', 'updated')
       }
-      // Deprecated
-      core.exportVariable('PULL_REQUEST_NUMBER', pull.number)
       core.endGroup()
     } else {
       // There is no longer a diff with the base