diff --git a/composer.json b/composer.json
index 33dacc570e68471c116d07a8c0d1e66274193c44..0ac48de78ade1b60a07385d8f319dd0ed600f6dc 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
         "neomerx/json-api": "4.0.1",
         "spomky-labs/otphp": "^10",
         "tuupola/cors-middleware": "^1.2.1",
-        "tecnickcom/tcpdf": "^6.3",
+        "tecnickcom/tcpdf": "6.7.5",
         "scssphp/scssphp": "1.12.1",
         "symfony/yaml": "^5.0",
         "ezyang/htmlpurifier": "^4.13",
diff --git a/composer.lock b/composer.lock
index 5d88b0b3ffcaace5a73a9e7b0b43f8c992b7de3e..4ca9e9640a2b05628632c8dd6525ed61c4b50fe0 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": "7dcab37d45eb1a3751325c91f0e782b1",
+    "content-hash": "37344117fe2a7e12104caa87e77be265",
     "packages": [
         {
             "name": "algo26-matthias/idna-convert",
@@ -4744,20 +4744,20 @@
         },
         {
             "name": "tecnickcom/tcpdf",
-            "version": "6.6.2",
+            "version": "6.7.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/tecnickcom/TCPDF.git",
-                "reference": "e3cffc9bcbc76e89e167e9eb0bbda0cab7518459"
+                "reference": "951eabf0338ec2522bd0d5d9c79b08a3a3d36b36"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/tecnickcom/TCPDF/zipball/e3cffc9bcbc76e89e167e9eb0bbda0cab7518459",
-                "reference": "e3cffc9bcbc76e89e167e9eb0bbda0cab7518459",
+                "url": "https://api.github.com/repos/tecnickcom/TCPDF/zipball/951eabf0338ec2522bd0d5d9c79b08a3a3d36b36",
+                "reference": "951eabf0338ec2522bd0d5d9c79b08a3a3d36b36",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.0"
+                "php": ">=5.5.0"
             },
             "type": "library",
             "autoload": {
@@ -4782,7 +4782,7 @@
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "LGPL-3.0-only"
+                "LGPL-3.0-or-later"
             ],
             "authors": [
                 {
@@ -4804,7 +4804,7 @@
             ],
             "support": {
                 "issues": "https://github.com/tecnickcom/TCPDF/issues",
-                "source": "https://github.com/tecnickcom/TCPDF/tree/6.6.2"
+                "source": "https://github.com/tecnickcom/TCPDF/tree/6.7.5"
             },
             "funding": [
                 {
@@ -4812,7 +4812,7 @@
                     "type": "custom"
                 }
             ],
-            "time": "2022-12-17T10:28:59+00:00"
+            "time": "2024-04-20T17:25:10+00:00"
         },
         {
             "name": "thecodingmachine/safe",