diff --git a/composer.json b/composer.json
index b4e4e56..13f8057 100644
--- a/composer.json
+++ b/composer.json
@@ -30,7 +30,7 @@
     "utopia-php/dsn": "0.2.*",
     "utopia-php/http": "2.0.0-rc18@RC",
     "utopia-php/orchestration": "^0.19.2",
-    "utopia-php/storage": "^3.1",
+    "utopia-php/storage": "^4.0",
     "utopia-php/system": "0.10.*"
   },
   "require-dev": {
diff --git a/composer.lock b/composer.lock
index ef07e05..838752b 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "5f3fc9a1f7ad194ab95cc5fc4c8b7239",
+    "content-hash": "4406170d40da27cf62b09e1728d9a6a9",
     "packages": [
         {
             "name": "brick/math",
@@ -2473,16 +2473,16 @@
         },
         {
             "name": "utopia-php/storage",
-            "version": "3.1.0",
+            "version": "4.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/utopia-php/storage.git",
-                "reference": "38bfc0c14a16a7de2a86b3331865dad1230ed739"
+                "reference": "ad05f341a9a62a4de73c5312f4ab6fe69f7d0051"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/utopia-php/storage/zipball/38bfc0c14a16a7de2a86b3331865dad1230ed739",
-                "reference": "38bfc0c14a16a7de2a86b3331865dad1230ed739",
+                "url": "https://api.github.com/repos/utopia-php/storage/zipball/ad05f341a9a62a4de73c5312f4ab6fe69f7d0051",
+                "reference": "ad05f341a9a62a4de73c5312f4ab6fe69f7d0051",
                 "shasum": ""
             },
             "require": {
@@ -2517,9 +2517,9 @@
             ],
             "support": {
                 "issues": "https://github.com/utopia-php/storage/issues",
-                "source": "https://github.com/utopia-php/storage/tree/3.1.0"
+                "source": "https://github.com/utopia-php/storage/tree/4.0.0"
             },
-            "time": "2026-07-22T15:57:57+00:00"
+            "time": "2026-07-23T20:37:10+00:00"
         },
         {
             "name": "utopia-php/system",
diff --git a/src/Executor/Runner/Docker.php b/src/Executor/Runner/Docker.php
index 89fe796..00db638 100644
--- a/src/Executor/Runner/Docker.php
+++ b/src/Executor/Runner/Docker.php
@@ -297,7 +297,7 @@ public function createRuntime(
             /**
              * Copy code files from source to a temporary location on the executor
              */
-            if ($source !== '' && $source !== '0' && !$sourceDevice->transfer($source, $tmpSource, $localDevice)) {
+            if ($source !== '' && $source !== '0' && !$sourceDevice->copy($source, $tmpSource, $localDevice)) {
                 throw new \Exception('Failed to copy source code to temporary directory');
                 ;
             }
@@ -448,7 +448,7 @@ public function createRuntime(
                 $destinationDevice = StorageFactory::getDevice($destination, System::getEnv('OPR_EXECUTOR_CONNECTION_STORAGE'));
                 $path = $destinationDevice->getPath(\uniqid() . '.' . \pathinfo($tmpBuild, PATHINFO_EXTENSION));
 
-                if (!$localDevice->transfer($tmpBuild, $path, $destinationDevice)) {
+                if (!$localDevice->copy($tmpBuild, $path, $destinationDevice)) {
                     throw new \Exception('Failed to move built code to storage');
                 };
 
@@ -612,7 +612,7 @@ private function restoreBuildCacheArtifact(string $cacheKey, string $tmpCache, L
             return;
         }
 
-        if (!$cacheDevice->transfer($artifact, $tmpCache . '/stores.sqfs', $localDevice)) {
+        if (!$cacheDevice->copy($artifact, $tmpCache . '/stores.sqfs', $localDevice)) {
             throw new \Exception('Failed to restore build cache artifact');
         }
     }
@@ -628,7 +628,7 @@ private function storeBuildCacheArtifact(string $cacheKey, string $tmpCache, Loc
         $cacheDevice = $this->getBuildCacheDevice();
         $destinationArtifact = $this->getBuildCacheArtifactPath($cacheDevice, $cacheKey);
 
-        if (!$localDevice->transfer($artifact, $destinationArtifact, $cacheDevice)) {
+        if (!$localDevice->copy($artifact, $destinationArtifact, $cacheDevice)) {
             throw new \Exception('Failed to store build cache artifact');
         }
     }
@@ -991,10 +991,10 @@ public function createExecution(
                 if ($logDevice->exists($logFile)) {
                     if ($logDevice->getFileSize($logFile) > MAX_LOG_SIZE) {
                         $maxToRead = MAX_LOG_SIZE;
-                        $logs = $logDevice->read($logFile, 0, $maxToRead);
+                        $logs = (string) $logDevice->read($logFile, 0, $maxToRead);
                         $logs .= "\nLog file has been truncated to " . number_format(MAX_LOG_SIZE / 1048576, 2) . "MB.";
                     } else {
-                        $logs = $logDevice->read($logFile);
+                        $logs = (string) $logDevice->read($logFile);
                     }
 
                     $logDevice->delete($logFile);
@@ -1003,10 +1003,10 @@ public function createExecution(
                 if ($logDevice->exists($errorFile)) {
                     if ($logDevice->getFileSize($errorFile) > MAX_LOG_SIZE) {
                         $maxToRead = MAX_LOG_SIZE;
-                        $errors = $logDevice->read($errorFile, 0, $maxToRead);
+                        $errors = (string) $logDevice->read($errorFile, 0, $maxToRead);
                         $errors .= "\nError file has been truncated to " . number_format(MAX_LOG_SIZE / 1048576, 2) . "MB.";
                     } else {
-                        $errors = $logDevice->read($errorFile);
+                        $errors = (string) $logDevice->read($errorFile);
                     }
 
                     $logDevice->delete($errorFile);