diff --git a/apps/hash-frontend/package.json b/apps/hash-frontend/package.json
index 77a4485ff4b..093984c1ac2 100644
--- a/apps/hash-frontend/package.json
+++ b/apps/hash-frontend/package.json
@@ -76,7 +76,7 @@
     "buffer": "6.0.3",
     "clsx": "2.1.1",
     "date-fns": "4.1.0",
-    "dompurify": "3.4.0",
+    "dompurify": "3.4.11",
     "dotenv-flow": "3.3.0",
     "elkjs": "0.11.0",
     "emoji-mart": "5.6.0",
diff --git a/package.json b/package.json
index af249a68794..dfbe3eb2b47 100644
--- a/package.json
+++ b/package.json
@@ -89,7 +89,7 @@
     "blockprotocol@npm:0.0.10": "patch:blockprotocol@npm%3A0.0.12#~/.yarn/patches/blockprotocol-npm-0.0.12-2558a31f0a.patch",
     "bull/uuid": "11.1.0",
     "canvas": "3.2.0",
-    "dompurify": "3.4.0",
+    "dompurify": "3.4.11",
     "fast-xml-parser": "5.7.0",
     "http-proxy-middleware@npm:^2.0.9": "patch:http-proxy-middleware@npm%3A3.0.5#~/.yarn/patches/http-proxy-middleware-npm-3.0.5-5c57f2e983.patch",
     "jsondiffpatch": "0.7.2",
diff --git a/yarn.lock b/yarn.lock
index 54a5e1b8fa0..fba91692c09 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -650,7 +650,7 @@ __metadata:
     buffer: "npm:6.0.3"
     clsx: "npm:2.1.1"
     date-fns: "npm:4.1.0"
-    dompurify: "npm:3.4.0"
+    dompurify: "npm:3.4.11"
     dotenv-flow: "npm:3.3.0"
     elkjs: "npm:0.11.0"
     emoji-mart: "npm:5.6.0"
@@ -23241,15 +23241,15 @@ __metadata:
   languageName: node
   linkType: hard
 
-"dompurify@npm:3.4.0":
-  version: 3.4.0
-  resolution: "dompurify@npm:3.4.0"
+"dompurify@npm:3.4.11":
+  version: 3.4.11
+  resolution: "dompurify@npm:3.4.11"
   dependencies:
     "@types/trusted-types": "npm:^2.0.7"
   dependenciesMeta:
     "@types/trusted-types":
       optional: true
-  checksum: 10c0/5593ac44ee20b9aa521c2120884effc98927fb9128c548183c75e79e0a04357c62ee913a049a267c8f396cb8c9d520ecf72562826c5524c46d4fe03c12063638
+  checksum: 10c0/31439481c7e8fc3805d40c376936fd66936620fb1b1a31a2ec097f6165412c37f2d868e082c9ceba62bb37661c1ea132a5db4d5213434317e30df68d4aca9cc9
   languageName: node
   linkType: hard