diff --git a/.circleci/config.yml b/.circleci/config.yml
index ce7ec3c..257cba6 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -7,7 +7,7 @@ jobs:
     working_directory: ~/drupal-skeleton
     docker:
       - image: cimg/php:8.3-browsers
-      - image: cimg/mysql:5.7
+      - image: cimg/mysql:8.0
         command: --max_allowed_packet=16M
         environment:
           MYSQL_ALLOW_EMPTY_PASSWORD: yes
diff --git a/.ddev/config.yaml b/.ddev/config.yaml
index aac52e0..c146592 100644
--- a/.ddev/config.yaml
+++ b/.ddev/config.yaml
@@ -7,14 +7,14 @@ name: drupal-skeleton
 
 # TODO: If the project uses Acquia hosting, use these settings.
 docroot: docroot
-mysql_version: "5.7"
+mysql_version: "8.0"
 webserver_type: apache-fpm
 
 # TODO: If the project uses Pantheon or Platform.sh hosting, remove the Acquia settings
 # and use these settings instead.
 #docroot: web
 #webserver_type: nginx-fpm
-#mariadb_version: "10.3"
+#mariadb_version: "10.6"
 
 # TODO: Make sure this PHP version matches the project's hosting environment.
 php_version: "8.3"
@@ -46,7 +46,7 @@ hooks:
 # This allows ddev to manage its own settings.ddev.php file.
 disable_settings_management: false
 
-type: drupal10
+type: drupal11
 router_http_port: "80"
 router_https_port: "443"
 provider: default
diff --git a/composer.json b/composer.json
index 0384a88..fc598d2 100644
--- a/composer.json
+++ b/composer.json
@@ -18,22 +18,21 @@
     "require": {
         "composer/installers": "^2.0",
         "drupal/admin_toolbar": "^3",
-        "drupal/config_ignore": "2.x-dev",
-        "drupal/config_split": "^1",
-        "drupal/core-composer-scaffold": "^10",
-        "drupal/core-recommended": "^10",
+        "drupal/config_ignore": "^3",
+        "drupal/config_split": "^2",
+        "drupal/core-composer-scaffold": "^11",
+        "drupal/core-recommended": "^11",
         "drupal/devel": "^5",
-        "drupal/workbench": "^1",
-        "drupal/workbench_tabs": "^1",
-        "drush/drush": ">=11"
+        "drupal/workbench": "^1.5",
+        "drupal/workbench_tabs": "^1.8",
+        "drush/drush": "^13"
     },
     "require-dev": {
         "behat/behat": "^3.12",
-        "behat/mink-goutte-driver": "^2.0",
         "dmore/behat-chrome-extension": "^1.4",
-        "drupal/core-dev": "^10",
-        "drupal/drupal-extension": "^5@alpha",
-        "palantirnet/the-build": "^4@beta"
+        "drupal/core-dev": "^11",
+        "drupal/drupal-extension": "^5",
+        "palantirnet/the-build": "dev-drupal11"
     },
     "suggest": {
         "acquia/memcache-settings": "If your acquia project uses Cloud Platform (and not Cloud Next), add this package and update acquia settings file based on: https://docs.acquia.com/cloud-platform/performance/memcached/enable/#configuration-for-drupal-9-or-later .",
@@ -56,7 +55,8 @@
             "cweagans/composer-patches": true,
             "dealerdirect/phpcodesniffer-composer-installer": true,
             "phpstan/extension-installer": true,
-            "php-http/discovery": true
+            "php-http/discovery": true,
+            "tbachert/spi": false
         },
         "platform": {
             "php": "8.3"
diff --git a/package.json b/package.json
index c9359c3..282ee13 100644
--- a/package.json
+++ b/package.json
@@ -1,9 +1,15 @@
 {
   "name": "palantirnet--drupal-skeleton",
-  "description": "A Drupal 8 project template.",
+  "description": "A Drupal 11 project template.",
   "version": "0.0.0",
   "devDependencies": {
-    "eslint": "8.39.0",
-    "eslint-config-drupal": "5.0.2"
+    "eslint": "^8.39.0",
+    "eslint-config-airbnb-base": "^15.0.0",
+    "eslint-config-drupal": "^5.0.2",
+    "eslint-config-prettier": "^9.1.0",
+    "eslint-plugin-import": "^2.29.1",
+    "eslint-plugin-prettier": "^5.2.1",
+    "eslint-plugin-yml": "^1.14.0",
+    "prettier": "^3.3.3"
   }
 }