diff --git a/composer.json b/composer.json
index 43bd14a9..79e927fa 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
         "doctrine/orm": "^2.15|^3.0",
         "friendsofphp/php-cs-fixer": "^3.34",
         "laravel/framework": "^10.0|^11.0",
-        "phpstan/phpstan": "^1.10",
+        "phpstan/phpstan": "^2.1.31",
         "phpunit/phpunit": "^10.4",
         "symfony/dependency-injection": "^6.0|^7.0",
         "symfony/framework-bundle": "^6.0|^7.0",
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index b7263d0a..2c0b0fa2 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -4,8 +4,24 @@ parameters:
         - src
         - tests
     excludePaths:
-        - src/DependencyInjection/DbToolsConfiguration.php
+        - src/DependencyInjection/DbToolsConfiguration.php (?)
     checkMissingOverrideMethodAttribute: true
+    treatPhpDocTypesAsCertain: false
     ignoreErrors:
         - '#Instantiated class Seld\\PharUtils\\Timestamps not found.#'
         - '#on an unknown class Seld\\PharUtils\\Timestamps.#'
+        #- '#Call to method PHPUnit\\Framework\\Assert::assertNotNull\(\) with array<string, mixed> will always evaluate to true.#'
+        - '#Call to static method PHPUnit\\Framework\\Assert::assertNotNull\(\) with string will always evaluate to true.#'
+        - '#Call to method PHPUnit\\Framework\\Assert::assertNotNull\(\) with int will always evaluate to true.#'
+        - '#Call to method PHPUnit\\Framework\\Assert::assertNotNull\(\) with float will always evaluate to true.#'
+        - '#Property MakinaCorpus\\DbToolsBundle\\Tests\\Resources\\Loader\\TestJoinedChild::\$url \(string\|null\) is never assigned string so it can be removed from the property type.#'
+        - '#Property MakinaCorpus\\DbToolsBundle\\Tests\\Resources\\Loader\\TestJoinedChild::\$thumbnail_url \(string\|null\) is never assigned string so it can be removed from the property type.#'
+        - '#Property MakinaCorpus\\DbToolsBundle\\Tests\\Resources\\Loader\\TestEntity::\$id \(int\|null\) is never assigned int so it can be removed from the property type.#'
+        - '#Call to function assert\(\) with true will always evaluate to true.#'
+        - '#Strict comparison using !== between Symfony\\Component\\Finder\\SplFileInfo and string\|null will always evaluate to true.#'
+        - '#Instanceof between MakinaCorpus\\DbToolsBundle\\Backupper\\MariadbBackupper\|MakinaCorpus\\DbToolsBundle\\Backupper\\MysqlBackupper\|MakinaCorpus\\DbToolsBundle\\Backupper\\PgsqlBackupper\|MakinaCorpus\\DbToolsBundle\\Backupper\\SqliteBackupper and MakinaCorpus\\DbToolsBundle\\Backupper\\AbstractBackupper will always evaluate to true.#'
+        - '#Instanceof between MakinaCorpus\\DbToolsBundle\\Restorer\\MariadbRestorer\|MakinaCorpus\\DbToolsBundle\\Restorer\\MysqlRestorer\|MakinaCorpus\\DbToolsBundle\\Restorer\\PgsqlRestorer\|MakinaCorpus\\DbToolsBundle\\Restorer\\SqliteRestorer and MakinaCorpus\\DbToolsBundle\\Restorer\\AbstractRestorer will always evaluate to true.#'
+        - '#Method MakinaCorpus\\DbToolsBundle\\Bridge\\Symfony\\DependencyInjection\\DbToolsExtension::getConfiguration\(\) never returns null so it can be removed from the return type.#'
+        - '#Property MakinaCorpus\\DbToolsBundle\\Tests\\Resources\\Loader\\TestEntityWithEmbedded::\$id \(int\|null\) is never assigned int so it can be removed from the property type.#'
+        - '#Property MakinaCorpus\\DbToolsBundle\\Tests\\Resources\\Loader\\TestJoinedParent::\$id \(int\|null\) is never assigned int so it can be removed from the property type.#'
+        - '#Property MakinaCorpus\\DbToolsBundle\\Tests\\Resources\\Loader\\TestJoinedParent::\$email \(string\|null\) is never assigned string so it can be removed from the property type.#'
diff --git a/src/Anonymization/Anonymizer/Core/DateAnonymizer.php b/src/Anonymization/Anonymizer/Core/DateAnonymizer.php
index 59ec3149..96267f9a 100644
--- a/src/Anonymization/Anonymizer/Core/DateAnonymizer.php
+++ b/src/Anonymization/Anonymizer/Core/DateAnonymizer.php
@@ -38,7 +38,6 @@ protected function validateOptions(): void
             throw new \InvalidArgumentException("You must specify both 'min' and 'max' boundaries.");
         }
 
-        // @phpstan-ignore-next-line False positive detected.
         if ($min && $max) {
             if ($max <= $min) {
                 throw new \InvalidArgumentException("'min' value must be less than 'max' value.");
diff --git a/src/Helper/LoremIpsum.php b/src/Helper/LoremIpsum.php
index f1cf093c..b4ae3e87 100644
--- a/src/Helper/LoremIpsum.php
+++ b/src/Helper/LoremIpsum.php
@@ -271,7 +271,7 @@ private function shuffle(): void
      * the injection of commas as well as capitalizing the first letter of the
      * first word of the sentence.
      *
-     * @param array<string> $words
+     * @param array<int, string> $words
      *   Word array.
      * @return string
      *   Punctuated sentence.
@@ -287,7 +287,7 @@ private function punctuate(array $words): string
             $commas = $this->gauss($mean, $std_dev);
 
             for ($i = 1; $i <= $commas; $i++) {
-                $word = \round($i * $word_count / ($commas + 1));
+                $word = (int) \round($i * $word_count / ($commas + 1));
 
                 if ($word < ($word_count - 1) && $word > 0) {
                     $words[$word] .= ',';
diff --git a/tests/Unit/Bridge/Symfony/DependencyInjection/DbToolsExtensionTest.php b/tests/Unit/Bridge/Symfony/DependencyInjection/DbToolsExtensionTest.php
index c57d0122..85b3e49c 100644
--- a/tests/Unit/Bridge/Symfony/DependencyInjection/DbToolsExtensionTest.php
+++ b/tests/Unit/Bridge/Symfony/DependencyInjection/DbToolsExtensionTest.php
@@ -32,7 +32,7 @@ private function getContainer(array $parameters = [], array $bundles = []): Cont
         return $container;
     }
 
-    private function testExtension(array $config, ContainerBuilder $container = null): void
+    private function testExtension(array $config, ?ContainerBuilder $container = null): void
     {
         $container ??= $this->getContainer();
         $extension = new DbToolsExtension();