diff --git a/package-lock.json b/package-lock.json
index f1bed96..ed4f73c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.3.1",
       "license": "EUPL-1.2",
       "dependencies": {
-        "@i3m/non-repudiation-library": "^2.0.0",
+        "@i3m/non-repudiation-library": "^2.6.4",
         "dotenv": "^16.0.0",
         "express": "^4.17.1",
         "express-openapi-validator": "^5.0.3",
@@ -920,9 +920,10 @@
       "dev": true
     },
     "node_modules/@i3m/non-repudiation-library": {
-      "version": "2.6.2",
-      "resolved": "https://registry.npmjs.org/@i3m/non-repudiation-library/-/non-repudiation-library-2.6.2.tgz",
-      "integrity": "sha512-/KIJbBCM69RK5s2+6MuH6MYznuMwIWZt30BNP8seniZIxYBZgXvvL9Y0YSlKsk5PUNH0mO3kgOjXASlm745UJA==",
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/@i3m/non-repudiation-library/-/non-repudiation-library-2.6.4.tgz",
+      "integrity": "sha512-yeA7h1qwF+ceOs2evSrqaOG/9Xq+LS5nfualU+/CcmKajdeqtttFHegm0sUhglmJ4GiqoDMWNo0xbp+XchTZMA==",
+      "license": "EUPL-1.2",
       "dependencies": {
         "@apidevtools/openapi-schemas": "^2.1.0",
         "@juanelas/base64": "^1.1.2",
diff --git a/package.json b/package.json
index d143e13..2aee562 100644
--- a/package.json
+++ b/package.json
@@ -91,7 +91,7 @@
     "typescript": "^5.0.4"
   },
   "dependencies": {
-    "@i3m/non-repudiation-library": "^2.0.0",
+    "@i3m/non-repudiation-library": "^2.6.4",
     "dotenv": "^16.0.0",
     "express": "^4.17.1",
     "express-openapi-validator": "^5.0.3",