diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 40a7c15..9b279c0 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -13,6 +13,7 @@
         "@fullcalendar/daygrid": "^6.1.20",
         "@fullcalendar/vue3": "^6.1.20",
         "axios": "^1.6.0",
+        "dompurify": "^3.4.11",
         "jsbarcode": "^3.12.3",
         "jspdf": "^4.2.1",
         "leaflet": "^1.9.4",
@@ -1756,7 +1757,6 @@
       "version": "3.4.11",
       "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.4.11.tgz",
       "integrity": "sha512-zhlUV12GsaRzMsf9q5M254YhA4+VuF0fG+QFqu6aYpoGlKtz+w8//jBcGVYBgQkR5GHjUomejY84AV+/uPbWdw==",
-      "optional": true,
       "optionalDependencies": {
         "@types/trusted-types": "^2.0.7"
       }