diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index b6f381a..898e83c 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.0.0",
       "dependencies": {
         "@types/dompurify": "^3.0.5",
-        "dompurify": "^3.3.1",
+        "dompurify": "^3.4.0",
         "highlight.js": "^11.10.0",
         "marked": "^15.0.0",
         "zod": "^3.25.76"
@@ -2580,9 +2580,9 @@
       "license": "MIT"
     },
     "node_modules/dompurify": {
-      "version": "3.3.1",
-      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.3.1.tgz",
-      "integrity": "sha512-qkdCKzLNtrgPFP1Vo+98FRzJnBRGe4ffyCea9IwHB1fyxPOeNTHpLKYGd4Uk9xvNoH0ZoOjwZxNptyMwqrId1Q==",
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.4.0.tgz",
+      "integrity": "sha512-nolgK9JcaUXMSmW+j1yaSvaEaoXYHwWyGJlkoCTghc97KgGDDSnpoU/PlEnw63Ah+TGKFOyY+X5LnxaWbCSfXg==",
       "license": "(MPL-2.0 OR Apache-2.0)",
       "optionalDependencies": {
         "@types/trusted-types": "^2.0.7"
diff --git a/frontend/package.json b/frontend/package.json
index 920c1b8..5483c25 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -22,7 +22,7 @@
   },
   "dependencies": {
     "@types/dompurify": "^3.0.5",
-    "dompurify": "^3.3.1",
+    "dompurify": "^3.4.0",
     "highlight.js": "^11.10.0",
     "marked": "^15.0.0",
     "zod": "^3.25.76"