diff --git a/.github/workflows/cmd-publish-pr-on-npm.yml b/.github/workflows/cmd-publish-pr-on-npm.yml
index 98f6f5dcc1..5a4b0f9e46 100644
--- a/.github/workflows/cmd-publish-pr-on-npm.yml
+++ b/.github/workflows/cmd-publish-pr-on-npm.yml
@@ -88,11 +88,7 @@ jobs:
               'No scripts allowed for security reasons!',
             );
 
-            fs.writeFileSync(
-              packageJSONPath,
-              JSON.stringify(packageJSON, null, 2),
-              'utf-8',
-            );
+            fs.writeFileSync(packageJSONPath, JSON.stringify(packageJSON, null, 2));
 
             const replyMessage = `
             The latest changes of this PR are available on NPM as
@@ -102,7 +98,7 @@ jobs:
             Also you can depend on latest version built from this PR:
             \`npm install --save graphql@${packageJSON.publishConfig.tag}\`
             `;
-            fs.writeFileSync('./replyMessage.txt', replyMessage.trim(), 'utf-8');
+            fs.writeFileSync('./replyMessage.txt', replyMessage.trim());
 
       - name: Publish NPM package
         run: npm publish --ignore-scripts ./npmDist
diff --git a/.github/workflows/github-actions-bot.yml b/.github/workflows/github-actions-bot.yml
index 6d130a1296..df5f166dff 100644
--- a/.github/workflows/github-actions-bot.yml
+++ b/.github/workflows/github-actions-bot.yml
@@ -125,7 +125,7 @@ jobs:
               ? 'Unknown command 😕\n\n' + process.env.SUPPORTED_COMMANDS
               : `Something went wrong, [please check log](${process.env.RUN_URL}).`;
 
-            fs.writeFileSync('./replyMessage.txt', replyMessage, 'utf-8');
+            fs.writeFileSync('./replyMessage.txt', replyMessage);
         env:
           NEEDS: ${{ toJSON(needs) }}
           RUN_URL: ${{github.server_url}}/${{github.repository}}/actions/runs/${{github.run_id}}
diff --git a/resources/diff-npm-package.ts b/resources/diff-npm-package.ts
index 2ad16e6988..5ae2790f03 100644
--- a/resources/diff-npm-package.ts
+++ b/resources/diff-npm-package.ts
@@ -34,7 +34,7 @@ if (diff === '') {
   console.log('No changes found!');
 } else {
   const reportPath = path.join(localRepoDir, 'npm-dist-diff.html');
-  fs.writeFileSync(reportPath, generateReport(diff), 'utf-8');
+  fs.writeFileSync(reportPath, generateReport(diff));
   console.log('Report saved to: ', reportPath);
 }