diff --git a/composer.lock b/composer.lock
index 1a3bf27227..a9ea6325b5 100644
--- a/composer.lock
+++ b/composer.lock
@@ -821,6 +821,7 @@
                 "xls",
                 "xlsx"
             ],
+            "abandoned": "phpoffice/phpspreadsheet",
             "time": "2015-05-01 07:00:55"
         },
         {
@@ -1094,16 +1095,16 @@
         },
         {
             "name": "tecnickcom/tcpdf",
-            "version": "6.2.12",
+            "version": "6.2.17",
             "source": {
                 "type": "git",
                 "url": "https://github.com/tecnickcom/TCPDF.git",
-                "reference": "2f732eaa91b5665274689b1d40b285a7bacdc37f"
+                "reference": "64fc19439863e1b1314487a72a74d9bfd0b55a53"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/tecnickcom/TCPDF/zipball/2f732eaa91b5665274689b1d40b285a7bacdc37f",
-                "reference": "2f732eaa91b5665274689b1d40b285a7bacdc37f",
+                "url": "https://api.github.com/repos/tecnickcom/TCPDF/zipball/64fc19439863e1b1314487a72a74d9bfd0b55a53",
+                "reference": "64fc19439863e1b1314487a72a74d9bfd0b55a53",
                 "shasum": ""
             },
             "require": {
@@ -1112,7 +1113,6 @@
             "type": "library",
             "autoload": {
                 "classmap": [
-                    "fonts",
                     "config",
                     "include",
                     "tcpdf.php",
@@ -1133,13 +1133,13 @@
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "LGPLv3"
+                "LGPL-3.0"
             ],
             "authors": [
                 {
                     "name": "Nicola Asuni",
                     "email": "info@tecnick.com",
-                    "homepage": "http://nicolaasuni.tecnick.com"
+                    "role": "lead"
                 }
             ],
             "description": "TCPDF is a PHP class for generating PDF documents and barcodes.",
@@ -1153,7 +1153,7 @@
                 "pdf417",
                 "qrcode"
             ],
-            "time": "2015-09-12 10:08:34"
+            "time": "2018-02-24 11:48:20"
         },
         {
             "name": "yzalis/identicon",