diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bc30100..69e2a18 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,12 +8,12 @@ jobs:
     runs-on: ubuntu-22.04
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Setup PHP
       uses: shivammathur/setup-php@v2
       with:
-        php-version: '7.4'
+        php-version: '8.1'
         extensions: mbstring, intl
         coverage: none
         tools: phpstan:1.10, cs2pr
diff --git a/composer.json b/composer.json
index 0ed3d09..300fe43 100644
--- a/composer.json
+++ b/composer.json
@@ -31,14 +31,25 @@
         }
     },
     "scripts": {
-        "cs-check": "phpcs --colors -p --standard=vendor/cakephp/cakephp-codesniffer/CakePHP src/",
-        "cs-fix": "phpcbf --colors --standard=vendor/cakephp/cakephp-codesniffer/CakePHP src/"
+        "cs-check": "phpcs --colors --parallel=16 -p src/",
+        "cs-fix": "phpcbf --colors --parallel=16 -p src/",
+        "phpstan": "tools/phpstan analyse",
+        "psalm": "tools/psalm --show-info=false",
+        "stan": [
+            "@phpstan",
+            "@psalm"
+        ],
+        "stan-baseline": "tools/phpstan --generate-baseline",
+        "psalm-baseline": "tools/psalm  --set-baseline=psalm-baseline.xml",
+        "tools-setup": "phive install",
+        "test": "phpunit"
     },
     "require": {
-        "cakephp/cakephp": "^4.0"
+        "php": ">=8.1",
+        "cakephp/cakephp": "^5.0.0"
     },
     "require-dev": {
-        "cakephp/cakephp-codesniffer": "^4.0"
+        "cakephp/cakephp-codesniffer": "^5.0"
     },
     "support": {
         "source": "https://github.com/FriendsOfCake/fixturize",
diff --git a/src/TestSuite/Fixture/ChecksumTestFixture.php b/src/TestSuite/Fixture/ChecksumTestFixture.php
index 47a05e7..499f7fc 100644
--- a/src/TestSuite/Fixture/ChecksumTestFixture.php
+++ b/src/TestSuite/Fixture/ChecksumTestFixture.php
@@ -3,16 +3,18 @@
 
 namespace FriendsOfCake\Fixturize\TestSuite\Fixture;
 
+use Cake\Database\Connection;
 use Cake\Database\Driver\Mysql;
 use Cake\Datasource\ConnectionInterface;
 use Cake\TestSuite\Fixture\TestFixture;
 
 /**
- * This class will inspect the database table hash and detect any change to the underlying
- * data set and automatically re-create the table and data
+ * This class will inspect the database table hash and detect any change to
+ * the underlying data set and automatically re-create the table and data
  *
- * If no data has changed, the usual truncate/insert flow is bypassed, increasing the speed
- * of the test suite with heavy fixture usage up significantly.
+ * If no data has changed, the usual truncate/insert flow is bypassed,
+ * increasing the speed of the test suite with heavy fixture usage up
+ * significantly.
  */
 class ChecksumTestFixture extends TestFixture
 {
@@ -21,7 +23,7 @@ class ChecksumTestFixture extends TestFixture
      *
      * @var array<string, string>
      */
-    protected static $_tableHashes = [];
+    protected static array $_tableHashes = [];
 
     /**
      * Inserts records in the database
@@ -29,19 +31,19 @@ class ChecksumTestFixture extends TestFixture
      * This will only happen if the underlying table is modified in any way or
      * does not exist with a hash yet.
      *
-     * @param \Cake\Datasource\ConnectionInterface $db An instance of the connection
-     *   into which the records will be inserted.
-     * @return \Cake\Database\StatementInterface|bool on success or if there are no records to insert,
+     * @param \Cake\Datasource\ConnectionInterface $connection An instance
+     *   of the connection into which the records will be inserted.
+     * @return bool on success or if there are no records to insert,
      *  or false on failure.
      */
-    public function insert(ConnectionInterface $db)
+    public function insert(ConnectionInterface $connection): bool
     {
-        if ($this->_tableUnmodified($db)) {
+        if ($this->_tableUnmodified($connection)) {
             return true;
         }
 
-        $result = parent::insert($db);
-        static::$_tableHashes[$this->_getTableKey()] = $this->_hash($db);
+        $result = parent::insert($connection);
+        static::$_tableHashes[$this->_getTableKey()] = $this->_hash($connection);
 
         return $result;
     }
@@ -51,29 +53,16 @@ public function insert(ConnectionInterface $db)
      *
      * This will only happen if the underlying table is modified in any way
      *
-     * @param \Cake\Datasource\ConnectionInterface $db A reference to a db instance
+     * @param \Cake\Datasource\ConnectionInterface $connection A reference to a db instance
      * @return bool
      */
-    public function truncate(ConnectionInterface $db): bool
+    public function truncate(ConnectionInterface $connection): bool
     {
-        if ($this->_tableUnmodified($db)) {
+        if ($this->_tableUnmodified($connection)) {
             return true;
         }
 
-        return parent::truncate($db);
-    }
-
-    /**
-     * Drops the table from the test datasource
-     *
-     * @param \Cake\Datasource\ConnectionInterface $db An instance of the connection the fixture should be removed from.
-     * @return bool True on success, false on failure.
-     */
-    public function drop(ConnectionInterface $db): bool
-    {
-        unset(static::$_tableHashes[$this->_getTableKey()]);
-
-        return parent::drop($db);
+        return parent::truncate($connection);
     }
 
     /**
@@ -84,17 +73,17 @@ public function drop(ConnectionInterface $db): bool
      * In all other cases where the initial and current hash differs, assume
      * the table has changed
      *
-     * @param \Cake\Datasource\ConnectionInterface $db A reference to a db instance
+     * @param \Cake\Datasource\ConnectionInterface $connection A reference to a db instance
      * @return bool
      */
-    protected function _tableUnmodified(ConnectionInterface $db): bool
+    protected function _tableUnmodified(ConnectionInterface $connection): bool
     {
         $tableKey = $this->_getTableKey();
         if (!array_key_exists($tableKey, static::$_tableHashes)) {
             return false;
         }
 
-        if (static::$_tableHashes[$tableKey] === $this->_hash($db)) {
+        if (static::$_tableHashes[$tableKey] === $this->_hash($connection)) {
             return true;
         }
 
@@ -104,15 +93,16 @@ protected function _tableUnmodified(ConnectionInterface $db): bool
     /**
      * Get the table hash from MySQL for a specific table
      *
-     * @param \Cake\Datasource\ConnectionInterface $db A reference to a db instance
+     * @param \Cake\Datasource\ConnectionInterface $connection A reference to a db instance
      * @return string
      */
-    protected function _hash(ConnectionInterface $db): string
+    protected function _hash(ConnectionInterface $connection): string
     {
-        $driver = $db->getDriver();
+        assert($connection instanceof Connection);
+        $driver = $connection->getDriver();
 
         if ($driver instanceof Mysql) {
-            $sth = $db->execute('CHECKSUM TABLE `' . $this->table . '`');
+            $sth = $connection->execute('CHECKSUM TABLE `' . $this->table . '`');
 
             return (string)$sth->fetchColumn(1);
         }