diff --git a/index.js b/index.js
index 7e91878..71f6983 100644
--- a/index.js
+++ b/index.js
@@ -52,7 +52,7 @@ async function getAndPostPullRequests() {
       pulls,
       (pr) => pr.head.ref === branch && pr.base.ref === base_branch,
     );
-    for (let pr in pulls) {
+    for (let pr of pulls) {
       core.info(pr.head.ref);
       core.info(pr.base.ref);
     }