diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 5934c6757..33c7235a2 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -254,8 +254,8 @@ catalogs:
       specifier: ^0.5.3
       version: 0.5.3
     isomorphic-dompurify:
-      specifier: ^3.16.0
-      version: 3.16.0
+      specifier: ^3.18.0
+      version: 3.18.0
     jiti:
       specifier: ^2.7.0
       version: 2.7.0
@@ -1029,7 +1029,7 @@ importers:
         version: 0.5.3(hono@4.12.25)
       isomorphic-dompurify:
         specifier: 'catalog:'
-        version: 3.16.0(@noble/hashes@1.8.0)
+        version: 3.18.0(@noble/hashes@1.8.0)
       marked:
         specifier: 'catalog:'
         version: 18.0.5
@@ -6456,6 +6456,9 @@ packages:
   dompurify@3.4.10:
     resolution: {integrity: sha512-0xzNv0e7oYC6yyuOGZIABPM4qtg3QxLFniDNPP4ZP90wR8Yq3zgwpRbrNiT4N3IKqDbbYFEJLV+JWEs19aZ//w==}
 
+  dompurify@3.4.11:
+    resolution: {integrity: sha512-zhlUV12GsaRzMsf9q5M254YhA4+VuF0fG+QFqu6aYpoGlKtz+w8//jBcGVYBgQkR5GHjUomejY84AV+/uPbWdw==}
+
   domutils@3.2.2:
     resolution: {integrity: sha512-6kZKyUajlDuqlHKVX1w7gyslj9MPIXzIFiz/rGu35uC1wMi+kMhQwGhl4lt9unC9Vb9INnY9Z3/ZA3+FhASLaw==}
 
@@ -7262,8 +7265,8 @@ packages:
     resolution: {integrity: sha512-6B3tLtFqtQS4ekarvLVMZ+X+VlvQekbe4taUkf/rhVO3d/h0M2rfARm/pXLcPEsjjMsFgrFgSrhQIxcSVrBz8w==}
     engines: {node: '>=18'}
 
-  isomorphic-dompurify@3.16.0:
-    resolution: {integrity: sha512-KzTJsMuVPqPwBOD0F6jKXoV/+v8CSx0rxVp+/67KV6Xbw++0zD/avT3bZsgwR0M5QRMiOE+QqQtoZLEJYy1C4Q==}
+  isomorphic-dompurify@3.18.0:
+    resolution: {integrity: sha512-ajp0D8laIHeoYlhBTevpE2HUhqWaqLXFk6K/wV3Ok8kDraBZpZsifwVWaY8IfJntMRIo1VSksgKV+lXyet9Q7A==}
     engines: {node: ^20.19.0 || ^22.13.0 || >=24.0.0}
 
   jackspeak@3.4.3:
@@ -13885,6 +13888,10 @@ snapshots:
     optionalDependencies:
       '@types/trusted-types': 2.0.7
 
+  dompurify@3.4.11:
+    optionalDependencies:
+      '@types/trusted-types': 2.0.7
+
   domutils@3.2.2:
     dependencies:
       dom-serializer: 2.0.0
@@ -14666,9 +14673,9 @@ snapshots:
 
   isexe@3.1.5: {}
 
-  isomorphic-dompurify@3.16.0(@noble/hashes@1.8.0):
+  isomorphic-dompurify@3.18.0(@noble/hashes@1.8.0):
     dependencies:
-      dompurify: 3.4.10
+      dompurify: 3.4.11
       jsdom: 29.1.1(@noble/hashes@1.8.0)
     transitivePeerDependencies:
       - '@noble/hashes'
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 78b4ffb39..5690e9806 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -102,7 +102,7 @@ catalog:
   happy-dom: ^20.10.2
   hono: ^4.12.25
   hono-rate-limiter: ^0.5.3
-  isomorphic-dompurify: ^3.16.0
+  isomorphic-dompurify: ^3.18.0
   jiti: ^2.7.0
   js-yaml: ^4.2.0
   marked: ^18.0.5