diff --git a/composer.json b/composer.json
index 1f208fe..ec81181 100644
--- a/composer.json
+++ b/composer.json
@@ -15,9 +15,9 @@
     "require": {
         "php": ">=8.2",
         "psr/simple-cache": "^3.0",
-        "symfony/console": "^6.3|^7.0",
-        "symfony/finder": "^6.3|^7.0",
-        "symfony/process": "^6.3|^7.0"
+        "symfony/console": "^6.4|^7.0",
+        "symfony/finder": "^6.4|^7.0",
+        "symfony/process": "^6.4|^7.0"
     },
     "config": {
         "optimize-autoloader": true,
@@ -43,9 +43,8 @@
         "stan": "vendor/bin/phpstan analyse src tests -l 8"
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "^3.49",
-        "phpstan/phpstan": "^1.10",
-        "phpunit/phpunit": "^10.5.10",
-        "symfony/var-dumper": "^7.0"
+        "friendsofphp/php-cs-fixer": "^3.58.1",
+        "phpstan/phpstan": "^1.11.4",
+        "phpunit/phpunit": "^10.5.20"
     }
 }
diff --git a/src/Cache/Adapter/ApcuCacheAdapter.php b/src/Cache/Adapter/ApcuCacheAdapter.php
index 8b299e7..6ac7385 100644
--- a/src/Cache/Adapter/ApcuCacheAdapter.php
+++ b/src/Cache/Adapter/ApcuCacheAdapter.php
@@ -24,7 +24,7 @@ public function __construct()
     /**
      * @param non-empty-string $key
      */
-    public function get(string $key, mixed $default = null): Entry|null
+    public function get(string $key, mixed $default = null): ?Entry
     {
         if ($default !== null && !$default instanceof Entry) {
             throw new \InvalidArgumentException('Default value must be null or an instance of Entry');
diff --git a/src/Cache/Adapter/MemcachedCacheAdapter.php b/src/Cache/Adapter/MemcachedCacheAdapter.php
index 4cbbcf1..144ca34 100644
--- a/src/Cache/Adapter/MemcachedCacheAdapter.php
+++ b/src/Cache/Adapter/MemcachedCacheAdapter.php
@@ -30,7 +30,7 @@ public function __construct(MemcachedServer|array $servers, string $persistentId
     /**
      * @param non-empty-string $key
      */
-    public function get(string $key, mixed $default = null): Entry|null
+    public function get(string $key, mixed $default = null): ?Entry
     {
         if ($default !== null && !$default instanceof Entry) {
             throw new \InvalidArgumentException('Default value must be null or an instance of Entry');
diff --git a/src/Cache/PersistentCache.php b/src/Cache/PersistentCache.php
index aa0ac38..b1de235 100644
--- a/src/Cache/PersistentCache.php
+++ b/src/Cache/PersistentCache.php
@@ -37,7 +37,7 @@ public function __construct(private ?string $cacheFile = null)
      *
      * @throws \InvalidArgumentException
      */
-    public function get(string $key, mixed $default = null): Entry|null
+    public function get(string $key, mixed $default = null): ?Entry
     {
         $entry = $this->entries[$key] ?? null;
         $isHit = $entry !== null;
diff --git a/src/Internal/PklDownloader.php b/src/Internal/PklDownloader.php
index 2ab594a..3afb631 100644
--- a/src/Internal/PklDownloader.php
+++ b/src/Internal/PklDownloader.php
@@ -18,7 +18,7 @@
  */
 final class PklDownloader
 {
-    private const PKL_CLI_VERSION = '0.25.2';
+    private const PKL_CLI_VERSION = '0.25.3';
 
     public function __construct()
     {