diff --git a/dev/release-v6.ts b/dev/release-v6.ts
index d8cfe4ca8d23..dda5fd792e7b 100755
--- a/dev/release-v6.ts
+++ b/dev/release-v6.ts
@@ -35,16 +35,23 @@ const RELEASING_COLUMN_ID = 17444349;
     process.exit(1);
   }
 
-  const github = new Octokit({
-    auth: token
-  });
+  const github = new Octokit({ auth: token });
   const commits = await getCommitsFromProject(github);
 
-  await Promise.all(commits.map(commit => mergeCommit(github, commit)));
+  await processCommitsInSeries(github, commits);
 })();
 
 // Helpers
 
+async function processCommitsInSeries(github: Octokit, commits: CardCommit[]) {
+  let commit: CardCommit | undefined = commits.shift();
+
+  while (commit) {
+    await mergeCommit(github, commit);
+    commit = commits.shift();
+  }
+}
+
 async function getCommitsFromProject(github: Octokit): Promise<CardCommit[]> {
   const cards = await github.rest.projects.listCards({
     column_id: TO_BE_RELEASED_COLUMN_ID
@@ -110,15 +117,19 @@ function mergeCommitTeaser(commit: PullRequest) {
 }
 
 async function moveCard(github: Octokit, card: Card, to: number) {
+  let result = 'skipped';
+
   if (process.env.DRY_RUN === 'false') {
-    const a = await github.rest.projects.moveCard({
+    const response = await github.rest.projects.moveCard({
       card_id: card.id,
       position: 'bottom',
       column_id: to
     });
 
-    console.log(a);
+    result = response.status === 201 ? 'success' : 'error';
   }
+
+  console.info('- Card moved to column:', result);
 }
 
 async function gitMerge(sha: string) {
diff --git a/test/unit/model/find-by-pk.test.js b/test/unit/model/find-by-pk.test.js
index fc25f56119e1..d87dfa0399e7 100644
--- a/test/unit/model/find-by-pk.test.js
+++ b/test/unit/model/find-by-pk.test.js
@@ -5,9 +5,11 @@ const chai = require('chai');
 const expect = chai.expect;
 const Support = require('../support');
 
+const Sequelize = Support.Sequelize;
+const Op = Sequelize.Op;
 const current = Support.sequelize;
 const sinon = require('sinon');
-const { DataTypes, Sequelize } = require('@sequelize/core');
+const DataTypes = require('../../../lib/data-types');
 
 describe(Support.getTestDialectTeaser('Model'), () => {
   describe('method findByPk', () => {