diff --git a/dist/index.js b/dist/index.js
index e652a91..dd26b58 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -7401,6 +7401,7 @@ async function run() {
             const onePR = await getOnePR(owner, repo, it.number);
             if (onePR.mergeable_state === 'dirty') {
               await doPRReview(owner, repo, number, 'REQUEST_CHANGES', conflictReviewBody);
+              await doClosePR(owner, repo, number);
               return false;
             }
             if (successReview === 'true') {
diff --git a/src/main.js b/src/main.js
index 5ab555a..4928fc7 100644
--- a/src/main.js
+++ b/src/main.js
@@ -107,6 +107,7 @@ async function run() {
             const onePR = await getOnePR(owner, repo, it.number);
             if (onePR.mergeable_state === 'dirty') {
               await doPRReview(owner, repo, number, 'REQUEST_CHANGES', conflictReviewBody);
+              await doClosePR(owner, repo, number);
               return false;
             }
             if (successReview === 'true') {