diff --git a/src/Services/InfoProviderSystem/DTOs/FileDTO.php b/src/Services/InfoProviderSystem/DTOs/FileDTO.php
index 516ab949..d5ba7fe2 100644
--- a/src/Services/InfoProviderSystem/DTOs/FileDTO.php
+++ b/src/Services/InfoProviderSystem/DTOs/FileDTO.php
@@ -29,14 +29,24 @@ namespace App\Services\InfoProviderSystem\DTOs;
  */
 class FileDTO
 {
+    /**
+     * @var string The URL where to get this file
+     */
+    public readonly string $url;
+
     /**
      * @param  string  $url The URL where to get this file
      * @param  string|null  $name Optionally the name of this file
      */
     public function __construct(
-        public readonly string $url,
+        string $url,
         public readonly ?string $name = null,
-    ) {}
+    ) {
+        //Find all occurrences of non URL safe characters and replace them with their URL encoded version.
+        //We only want to replace characters which can not have a valid meaning in a URL (what would break the URL).
+        //Digikey provided some wrong URLs with a ^ in them, which is not a valid URL character. (https://github.com/Part-DB/Part-DB-server/issues/521)
+        $this->url = preg_replace_callback('/[^a-zA-Z0-9_\-.$+!*();\/?:@=&#%]/', fn($matches) => urlencode($matches[0]), $url);
+    }
 
 
 }
\ No newline at end of file
diff --git a/tests/Services/InfoProviderSystem/DTOs/FileDTOTest.php b/tests/Services/InfoProviderSystem/DTOs/FileDTOTest.php
new file mode 100644
index 00000000..3f0deafd
--- /dev/null
+++ b/tests/Services/InfoProviderSystem/DTOs/FileDTOTest.php
@@ -0,0 +1,52 @@
+<?php
+/*
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ *  Copyright (C) 2019 - 2024 Jan Böhmer (https://github.com/jbtronics)
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published
+ *  by the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace App\Tests\Services\InfoProviderSystem\DTOs;
+
+use App\Services\InfoProviderSystem\DTOs\FileDTO;
+use PHPUnit\Framework\TestCase;
+
+class FileDTOTest extends TestCase
+{
+
+
+    public static function escapingDataProvider(): array
+    {
+        return [
+            //Normal URLs must be unchanged, even if they contain special characters
+            ["https://localhost:8000/en/part/1335/edit#attachments", "https://localhost:8000/en/part/1335/edit#attachments"],
+            ["https://localhost:8000/en/part/1335/edit?test=%20%20&sfee_aswer=test-223!*()", "https://localhost:8000/en/part/1335/edit?test=%20%20&sfee_aswer=test-223!*()"],
+
+            //Remaining URL unsafe characters must be escaped
+            ["test%5Ese", "test^se"],
+            ["test+se", "test se"],
+            ["test%7Cse", "test|se"],
+        ];
+    }
+
+    /**
+     * @dataProvider escapingDataProvider
+     */
+    public function testURLEscaping(string $expected, string $input): void
+    {
+        $fileDTO = new FileDTO( $input);
+        self::assertSame($expected, $fileDTO->url);
+    }
+}