diff --git a/composer.lock b/composer.lock
index ed39b5b6..8c56482c 100644
--- a/composer.lock
+++ b/composer.lock
@@ -5266,16 +5266,16 @@
         },
         {
             "name": "tecnickcom/tcpdf",
-            "version": "6.4.2",
+            "version": "6.4.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/tecnickcom/TCPDF.git",
-                "reference": "172540dcbfdf8dc983bc2fe78feff48ff7ec1c76"
+                "reference": "42cd0f9786af7e5db4fcedaa66f717b0d0032320"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/tecnickcom/TCPDF/zipball/172540dcbfdf8dc983bc2fe78feff48ff7ec1c76",
-                "reference": "172540dcbfdf8dc983bc2fe78feff48ff7ec1c76",
+                "url": "https://api.github.com/repos/tecnickcom/TCPDF/zipball/42cd0f9786af7e5db4fcedaa66f717b0d0032320",
+                "reference": "42cd0f9786af7e5db4fcedaa66f717b0d0032320",
                 "shasum": ""
             },
             "require": {
@@ -5326,7 +5326,7 @@
             ],
             "support": {
                 "issues": "https://github.com/tecnickcom/TCPDF/issues",
-                "source": "https://github.com/tecnickcom/TCPDF/tree/6.4.2"
+                "source": "https://github.com/tecnickcom/TCPDF/tree/6.4.4"
             },
             "funding": [
                 {
@@ -5334,7 +5334,7 @@
                     "type": "custom"
                 }
             ],
-            "time": "2021-07-20T14:43:20+00:00"
+            "time": "2021-12-31T08:39:24+00:00"
         },
         {
             "name": "theseer/tokenizer",