diff --git a/web/package.json b/web/package.json
index c83797ab..c6b8bd89 100644
--- a/web/package.json
+++ b/web/package.json
@@ -62,7 +62,7 @@
     "js-yaml": "^4.1.0",
     "katex": "^0.16.22",
     "lucide-react": "^0.522.0",
-    "monaco-editor": "^0.52.2",
+    "monaco-editor": "^0.55.1",
     "monaco-yaml": "^5.4.0",
     "react": "^18.3.1",
     "react-diff-viewer-continued": "^3.4.0",
diff --git a/web/pnpm-lock.yaml b/web/pnpm-lock.yaml
index 4cbda519..beae57a1 100644
--- a/web/pnpm-lock.yaml
+++ b/web/pnpm-lock.yaml
@@ -20,7 +20,7 @@ dependencies:
     version: 1.25.2(hono@4.11.3)(zod@3.25.76)
   '@monaco-editor/react':
     specifier: ^4.7.0
-    version: 4.7.0(monaco-editor@0.52.2)(react-dom@18.3.1)(react@18.3.1)
+    version: 4.7.0(monaco-editor@0.55.1)(react-dom@18.3.1)(react@18.3.1)
   '@types/uuid':
     specifier: ^10.0.0
     version: 10.0.0
@@ -55,11 +55,11 @@ dependencies:
     specifier: ^0.522.0
     version: 0.522.0(react@18.3.1)
   monaco-editor:
-    specifier: ^0.52.2
-    version: 0.52.2
+    specifier: ^0.55.1
+    version: 0.55.1
   monaco-yaml:
     specifier: ^5.4.0
-    version: 5.4.0(monaco-editor@0.52.2)
+    version: 5.4.0(monaco-editor@0.55.1)
   react:
     specifier: ^18.3.1
     version: 18.3.1
@@ -2376,7 +2376,7 @@ packages:
       state-local: 1.0.7
     dev: false
 
-  /@monaco-editor/react@4.7.0(monaco-editor@0.52.2)(react-dom@18.3.1)(react@18.3.1):
+  /@monaco-editor/react@4.7.0(monaco-editor@0.55.1)(react-dom@18.3.1)(react@18.3.1):
     resolution: {integrity: sha512-cyzXQCtO47ydzxpQtCGSQGOC8Gk3ZUeBXFAxD+CWXYFo5OqZyZUonFl0DwUlTyAfRHntBfw2p3w4s9R6oe1eCA==}
     peerDependencies:
       monaco-editor: '>= 0.25.0 < 1'
@@ -2384,7 +2384,7 @@ packages:
       react-dom: ^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0
     dependencies:
       '@monaco-editor/loader': 1.7.0
-      monaco-editor: 0.52.2
+      monaco-editor: 0.55.1
       react: 18.3.1
       react-dom: 18.3.1(react@18.3.1)
     dev: false
@@ -4225,6 +4225,12 @@ packages:
       '@types/prop-types': 15.7.15
       csstype: 3.2.3
 
+  /@types/trusted-types@2.0.7:
+    resolution: {integrity: sha512-ScaPdn1dQczgbl0QFTeTOmVHFULt394XJgOQNoyVhZ6r2vLnMLJfBPd53SB52T/3G36VI1/g2MZaX0cwDuXsfw==}
+    requiresBuild: true
+    dev: false
+    optional: true
+
   /@types/unist@2.0.11:
     resolution: {integrity: sha512-CmBKiL6NNo/OqgmMn95Fk9Whlp2mtvIv+KNpQKN2F4SjvrEesubTRWGYSg+BnWZOnlCaSTU1sMpsBOzgbYhnsA==}
     dev: false
@@ -5058,6 +5064,12 @@ packages:
       esutils: 2.0.3
     dev: true
 
+  /dompurify@3.2.7:
+    resolution: {integrity: sha512-WhL/YuveyGXJaerVlMYGWhvQswa7myDG17P7Vu65EWC05o8vfeNbvNf4d/BOvH99+ZW+LlQsc1GDKMa1vNK6dw==}
+    optionalDependencies:
+      '@types/trusted-types': 2.0.7
+    dev: false
+
   /dunder-proto@1.0.1:
     resolution: {integrity: sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==}
     engines: {node: '>= 0.4'}
@@ -6492,6 +6504,12 @@ packages:
     resolution: {integrity: sha512-wiYz4+JrLyb/DqW2hkFJxP7Vd7JuTDm77fvbM8VfEQdmSMqcImWeeRbHwZjBjIFki/VaMK2BhFi7oUUZeM5bqw==}
     dev: false
 
+  /marked@14.0.0:
+    resolution: {integrity: sha512-uIj4+faQ+MgHgwUW1l2PsPglZLOLOT1uErt06dAPtx2kjteLAkbsd/0FiYg/MGS+i7ZKLb7w2WClxHkzOOuryQ==}
+    engines: {node: '>= 18'}
+    hasBin: true
+    dev: false
+
   /math-intrinsics@1.1.0:
     resolution: {integrity: sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==}
     engines: {node: '>= 0.4'}
@@ -7018,8 +7036,11 @@ packages:
     resolution: {integrity: sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==}
     dev: true
 
-  /monaco-editor@0.52.2:
-    resolution: {integrity: sha512-GEQWEZmfkOGLdd3XK8ryrfWz3AIP8YymVXiPHEdewrUq7mh0qrKrfHLNCXcbB6sTnMLnOZ3ztSiKcciFUkIJwQ==}
+  /monaco-editor@0.55.1:
+    resolution: {integrity: sha512-jz4x+TJNFHwHtwuV9vA9rMujcZRb0CEilTEwG2rRSpe/A7Jdkuj8xPKttCgOh+v/lkHy7HsZ64oj+q3xoAFl9A==}
+    dependencies:
+      dompurify: 3.2.7
+      marked: 14.0.0
     dev: false
 
   /monaco-languageserver-types@0.4.0:
@@ -7040,25 +7061,25 @@ packages:
     resolution: {integrity: sha512-cxYEIVVKQ46FsH96b91pn+9jdl/Bz8rJ08oNeUgK2DNMGQUMuZh77USqt+L0ns9Y+/aFItWyPBgj6bkZvtWCsQ==}
     dev: false
 
-  /monaco-worker-manager@2.0.1(monaco-editor@0.52.2):
+  /monaco-worker-manager@2.0.1(monaco-editor@0.55.1):
     resolution: {integrity: sha512-kdPL0yvg5qjhKPNVjJoym331PY/5JC11aPJXtCZNwWRvBr6jhkIamvYAyiY5P1AWFmNOy0aRDRoMdZfa71h8kg==}
     peerDependencies:
       monaco-editor: '>=0.30.0'
     dependencies:
-      monaco-editor: 0.52.2
+      monaco-editor: 0.55.1
     dev: false
 
-  /monaco-yaml@5.4.0(monaco-editor@0.52.2):
+  /monaco-yaml@5.4.0(monaco-editor@0.55.1):
     resolution: {integrity: sha512-tuBVDy1KAPrgO905GHTItu8AaA5bIzF5S4X0JVRAE/D66FpRhkDUk7tKi5bwKMVTTugtpMLsXN4ewh4CgE/FtQ==}
     peerDependencies:
       monaco-editor: '>=0.36'
     dependencies:
       jsonc-parser: 3.3.1
-      monaco-editor: 0.52.2
+      monaco-editor: 0.55.1
       monaco-languageserver-types: 0.4.0
       monaco-marker-data-provider: 1.2.5
       monaco-types: 0.1.1
-      monaco-worker-manager: 2.0.1(monaco-editor@0.52.2)
+      monaco-worker-manager: 2.0.1(monaco-editor@0.55.1)
       path-browserify: 1.0.1
       prettier: 3.7.4
       vscode-languageserver-textdocument: 1.0.12