diff --git a/package-lock.json b/package-lock.json
index acea95c..d93e8b2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,7 +25,7 @@
         "@eslint/js": "10.0.1",
         "@toon-format/toon": "2.1.0",
         "eslint": "10.4.1",
-        "gpt-tokenizer": "3.0.0"
+        "gpt-tokenizer": "3.4.0"
       },
       "engines": {
         "node": ">=18.0.0"
@@ -1060,9 +1060,9 @@
       }
     },
     "node_modules/gpt-tokenizer": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/gpt-tokenizer/-/gpt-tokenizer-3.0.0.tgz",
-      "integrity": "sha512-S7SWrQHkl73wpZEJjeIh9Gfx2aVHudAEadezI2/SSvqRMtQiUjjHDah4m8LWTxcw9Fx9VphNXpqdnMo3FapDFg==",
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/gpt-tokenizer/-/gpt-tokenizer-3.4.0.tgz",
+      "integrity": "sha512-wxFLnhIXTDjYebd9A9pGl3e31ZpSypbpIJSOswbgop5jLte/AsZVDvjlbEuVFlsqZixVKqbcoNmRlFDf6pz/UQ==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/package.json b/package.json
index 46cee6c..2088376 100644
--- a/package.json
+++ b/package.json
@@ -67,6 +67,6 @@
     "@eslint/js": "10.0.1",
     "@toon-format/toon": "2.1.0",
     "eslint": "10.4.1",
-    "gpt-tokenizer": "3.0.0"
+    "gpt-tokenizer": "3.4.0"
   }
 }