diff --git a/.github/workflows/pr.yaml b/.github/workflows/pr.yaml
index 2cf59f8..e7ed253 100644
--- a/.github/workflows/pr.yaml
+++ b/.github/workflows/pr.yaml
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-versions: [ '8.1' ]
+        php-versions: [ '8.3' ]
         dependency-version: [ prefer-lowest, prefer-stable ]
     steps:
       - uses: actions/checkout@master
@@ -55,7 +55,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-versions: [ '8.1' ]
+        php-versions: [ '8.3' ]
         dependency-version: [ prefer-lowest, prefer-stable ]
     steps:
       - uses: actions/checkout@master
@@ -88,7 +88,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-versions: [ '8.1' ]
+        php-versions: [ '8.3' ]
         dependency-version: [ prefer-lowest, prefer-stable ]
     steps:
       - uses: actions/checkout@master
@@ -113,7 +113,7 @@ jobs:
         run: |
           # We need a Drupal project to run drupal-check (cf. https://github.com/mglaman/drupal-check#usage)
           # Install Drupal
-          composer --no-interaction create-project drupal/recommended-project:^9 --stability=dev drupal
+          composer --no-interaction create-project drupal/recommended-project:^10 --stability=dev drupal
           # Copy our module source code into the Drupal module folder.
           mkdir -p drupal/web/modules/contrib/os2forms_sync
           cp -r os2forms_sync.* composer.json src drupal/web/modules/contrib/os2forms_sync
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b0fa639..63f298f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,9 +11,15 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ### Updated
 
+## [1.2.1]
+
 - Update GitHub workflows runner images
 - D10 compatibility - updating RequestStack
 
+## [1.2.0]
+
+- Drupal 10 compatibility
+
 ## [1.1.3]
 
 ### Updated
@@ -44,7 +50,9 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 - Added OS2Forms sync module
 
-[Unreleased]: https://github.com/itk-dev/os2forms_sync/compare/1.1.3...HEAD
+[Unreleased]: https://github.com/itk-dev/os2forms_sync/compare/1.2.1...HEAD
+[1.2.1]: https://github.com/itk-dev/os2forms_sync/compare/1.2.0...1.2.1
+[1.2.0]: https://github.com/itk-dev/os2forms_sync/compare/1.1.3...1.2.0
 [1.1.3]: https://github.com/itk-dev/os2forms_sync/compare/1.1.2...1.1.3
 [1.1.2]: https://github.com/itk-dev/os2forms_sync/compare/1.1.1...1.1.2
 [1.1.1]: https://github.com/itk-dev/os2forms_sync/compare/1.1.0...1.1.1
diff --git a/README.md b/README.md
index 04c6d49..3ff1166 100644
--- a/README.md
+++ b/README.md
@@ -32,16 +32,16 @@ drush os2forms-sync:import --help
 ## Coding standards
 
 ```sh
-docker run --rm --interactive --tty --volume ${PWD}:/app itkdev/php8.1-fpm:latest composer install
-docker run --rm --interactive --tty --volume ${PWD}:/app itkdev/php8.1-fpm:latest composer coding-standards-check
+docker run --rm --interactive --tty --volume ${PWD}:/app itkdev/php8.3-fpm:latest composer install
+docker run --rm --interactive --tty --volume ${PWD}:/app itkdev/php8.3-fpm:latest composer coding-standards-check
 
-docker run --rm --interactive --tty --volume ${PWD}:/app node:18 yarn --cwd /app install
-docker run --rm --interactive --tty --volume ${PWD}:/app node:18 yarn --cwd /app coding-standards-check
+docker run --rm --interactive --tty --volume ${PWD}:/app node:20 yarn --cwd /app install
+docker run --rm --interactive --tty --volume ${PWD}:/app node:20 yarn --cwd /app coding-standards-check
 ```
 
 ## Code analysis
 
 ```sh
-docker run --rm --interactive --tty --volume ${PWD}:/app itkdev/php8.1-fpm:latest composer install
-docker run --rm --interactive --tty --volume ${PWD}:/app itkdev/php8.1-fpm:latest composer code-analysis
+docker run --rm --interactive --tty --volume ${PWD}:/app itkdev/php8.3-fpm:latest composer install
+docker run --rm --interactive --tty --volume ${PWD}:/app itkdev/php8.3-fpm:latest composer code-analysis
 ```
diff --git a/src/Controller/WebformController.php b/src/Controller/WebformController.php
index 5f0f08d..c4e3233 100644
--- a/src/Controller/WebformController.php
+++ b/src/Controller/WebformController.php
@@ -126,7 +126,7 @@ public function index(): array {
           $form = $this->webformHelper->getSubmissionForm($attributes['elements']);
           // Make sure that the form cannot be submitted (hopefully).
           $form['#attributes']['onsubmit'] = 'return false';
-          $renderedForm = $this->renderer->renderPlain($form);
+          $renderedForm = $this->renderer->renderInIsolation($form);
         }
         catch (\Throwable $t) {
           $form = [
@@ -137,7 +137,7 @@ public function index(): array {
               ],
             ],
           ];
-          $renderedForm = $this->renderer->renderPlain($form);
+          $renderedForm = $this->renderer->renderInIsolation($form);
         }
 
         $sourceUrl = $webform->sourceUrl;