diff --git a/build/controllers/github.js b/build/controllers/github.js
index 0db8562a..f9c0d686 100644
--- a/build/controllers/github.js
+++ b/build/controllers/github.js
@@ -257,6 +257,12 @@ async function processWebhook(
         repositoryName: request.payload.repository.name,
       });
     }
+    if (request.payload.action === 'unlabeled' && request.payload.label.name === ':rocket: Ready to Merge') {
+      await pullRequestRepository.delete({
+        number: request.payload.number,
+        repositoryName: request.payload.repository.name,
+      });
+    }
     return `Ignoring ${request.payload.action} action`;
   } else {
     return `Ignoring ${eventName} event`;
diff --git a/build/repositories/pull-request-repository.js b/build/repositories/pull-request-repository.js
index 75a14704..572b4e9d 100644
--- a/build/repositories/pull-request-repository.js
+++ b/build/repositories/pull-request-repository.js
@@ -16,4 +16,8 @@ async function update({ number, repositoryName, isMerging }) {
   await knex('pull_requests').where({ number, repositoryName }).update({ isMerging });
 }
 
-export { save, isAtLeastOneMergeInProgress, update };
+async function remove({ number, repositoryName }) {
+  await knex('pull_requests').where({ number, repositoryName }).delete();
+}
+
+export { save, isAtLeastOneMergeInProgress, update, remove };
diff --git a/test/unit/build/controllers/github_test.js b/test/unit/build/controllers/github_test.js
index a487b175..ae946d72 100644
--- a/test/unit/build/controllers/github_test.js
+++ b/test/unit/build/controllers/github_test.js
@@ -172,6 +172,31 @@ Les variables d'environnement seront accessibles sur scalingo https://dashboard.
           });
         });
 
+        describe('when action is `unlabeled`', function () {
+          describe('when label is Ready-to-merge', function () {
+            it('should call pullRequestRepository.remove() method', async function () {
+              // given
+              sinon.stub(request, 'payload').value({
+                action: 'unlabeled',
+                number: 123,
+                label: { name: ':rocket: Ready to Merge' },
+                repository: { name: 'pix-sample-repo' },
+              });
+
+              const pullRequestRepository = { remove: sinon.stub() };
+
+              // when
+              await githubController.processWebhook(request, { pullRequestRepository });
+
+              // then
+              expect(pullRequestRepository.remove).to.be.calledOnceWithExactly({
+                number: 123,
+                repositoryName: 'pix-sample-repo',
+              });
+            });
+          });
+        });
+
         it('should call handleCloseRA() method on closed action', async function () {
           // given
           sinon.stub(request, 'payload').value({ action: 'closed' });