diff --git a/client/package.json b/client/package.json
index c588ccc6d9..760d539695 100644
--- a/client/package.json
+++ b/client/package.json
@@ -81,7 +81,7 @@
     "lodash": "^4.17.23",
     "lucide-react": "^0.394.0",
     "match-sorter": "^8.1.0",
-    "mermaid": "^11.12.3",
+    "mermaid": "^11.13.0",
     "micromark-extension-llm-math": "^3.1.0",
     "qrcode.react": "^4.2.0",
     "rc-input-number": "^7.4.2",
@@ -148,7 +148,7 @@
     "jest-environment-jsdom": "^30.2.0",
     "jest-file-loader": "^1.0.3",
     "jest-junit": "^16.0.0",
-    "monaco-editor": "^0.55.0",
+    "monaco-editor": "^0.55.1",
     "postcss": "^8.4.31",
     "postcss-preset-env": "^11.2.0",
     "tailwindcss": "^3.4.1",
diff --git a/client/src/components/Artifacts/ArtifactCodeEditor.tsx b/client/src/components/Artifacts/ArtifactCodeEditor.tsx
index ddf8dc84fa..d03397821d 100644
--- a/client/src/components/Artifacts/ArtifactCodeEditor.tsx
+++ b/client/src/components/Artifacts/ArtifactCodeEditor.tsx
@@ -313,7 +313,7 @@ export const ArtifactCodeEditor = function ArtifactCodeEditor({
     <div className="h-full w-full bg-[#1e1e1e]">
       <MonacoEditor
         height="100%"
-        language={language}
+        language={readOnly ? 'plaintext' : language}
         theme="vs-dark"
         defaultValue={artifact.content}
         onChange={handleChange}
diff --git a/package-lock.json b/package-lock.json
index 53e0b2e642..0672e76b3d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -432,7 +432,7 @@
         "lodash": "^4.17.23",
         "lucide-react": "^0.394.0",
         "match-sorter": "^8.1.0",
-        "mermaid": "^11.12.3",
+        "mermaid": "^11.13.0",
         "micromark-extension-llm-math": "^3.1.0",
         "qrcode.react": "^4.2.0",
         "rc-input-number": "^7.4.2",
@@ -499,7 +499,7 @@
         "jest-environment-jsdom": "^30.2.0",
         "jest-file-loader": "^1.0.3",
         "jest-junit": "^16.0.0",
-        "monaco-editor": "^0.55.0",
+        "monaco-editor": "^0.55.1",
         "postcss": "^8.4.31",
         "postcss-preset-env": "^11.2.0",
         "tailwindcss": "^3.4.1",
@@ -7299,42 +7299,42 @@
       "license": "MIT"
     },
     "node_modules/@chevrotain/cst-dts-gen": {
-      "version": "11.1.1",
-      "resolved": "https://registry.npmjs.org/@chevrotain/cst-dts-gen/-/cst-dts-gen-11.1.1.tgz",
-      "integrity": "sha512-fRHyv6/f542qQqiRGalrfJl/evD39mAvbJLCekPazhiextEatq1Jx1K/i9gSd5NNO0ds03ek0Cbo/4uVKmOBcw==",
+      "version": "11.1.2",
+      "resolved": "https://registry.npmjs.org/@chevrotain/cst-dts-gen/-/cst-dts-gen-11.1.2.tgz",
+      "integrity": "sha512-XTsjvDVB5nDZBQB8o0o/0ozNelQtn2KrUVteIHSlPd2VAV2utEb6JzyCJaJ8tGxACR4RiBNWy5uYUHX2eji88Q==",
       "license": "Apache-2.0",
       "dependencies": {
-        "@chevrotain/gast": "11.1.1",
-        "@chevrotain/types": "11.1.1",
+        "@chevrotain/gast": "11.1.2",
+        "@chevrotain/types": "11.1.2",
         "lodash-es": "4.17.23"
       }
     },
     "node_modules/@chevrotain/gast": {
-      "version": "11.1.1",
-      "resolved": "https://registry.npmjs.org/@chevrotain/gast/-/gast-11.1.1.tgz",
-      "integrity": "sha512-Ko/5vPEYy1vn5CbCjjvnSO4U7GgxyGm+dfUZZJIWTlQFkXkyym0jFYrWEU10hyCjrA7rQtiHtBr0EaZqvHFZvg==",
+      "version": "11.1.2",
+      "resolved": "https://registry.npmjs.org/@chevrotain/gast/-/gast-11.1.2.tgz",
+      "integrity": "sha512-Z9zfXR5jNZb1Hlsd/p+4XWeUFugrHirq36bKzPWDSIacV+GPSVXdk+ahVWZTwjhNwofAWg/sZg58fyucKSQx5g==",
       "license": "Apache-2.0",
       "dependencies": {
-        "@chevrotain/types": "11.1.1",
+        "@chevrotain/types": "11.1.2",
         "lodash-es": "4.17.23"
       }
     },
     "node_modules/@chevrotain/regexp-to-ast": {
-      "version": "11.1.1",
-      "resolved": "https://registry.npmjs.org/@chevrotain/regexp-to-ast/-/regexp-to-ast-11.1.1.tgz",
-      "integrity": "sha512-ctRw1OKSXkOrR8VTvOxrQ5USEc4sNrfwXHa1NuTcR7wre4YbjPcKw+82C2uylg/TEwFRgwLmbhlln4qkmDyteg==",
+      "version": "11.1.2",
+      "resolved": "https://registry.npmjs.org/@chevrotain/regexp-to-ast/-/regexp-to-ast-11.1.2.tgz",
+      "integrity": "sha512-nMU3Uj8naWer7xpZTYJdxbAs6RIv/dxYzkYU8GSwgUtcAAlzjcPfX1w+RKRcYG8POlzMeayOQ/znfwxEGo5ulw==",
       "license": "Apache-2.0"
     },
     "node_modules/@chevrotain/types": {
-      "version": "11.1.1",
-      "resolved": "https://registry.npmjs.org/@chevrotain/types/-/types-11.1.1.tgz",
-      "integrity": "sha512-wb2ToxG8LkgPYnKe9FH8oGn3TMCBdnwiuNC5l5y+CtlaVRbCytU0kbVsk6CGrqTL4ZN4ksJa0TXOYbxpbthtqw==",
+      "version": "11.1.2",
+      "resolved": "https://registry.npmjs.org/@chevrotain/types/-/types-11.1.2.tgz",
+      "integrity": "sha512-U+HFai5+zmJCkK86QsaJtoITlboZHBqrVketcO2ROv865xfCMSFpELQoz1GkX5GzME8pTa+3kbKrZHQtI0gdbw==",
       "license": "Apache-2.0"
     },
     "node_modules/@chevrotain/utils": {
-      "version": "11.1.1",
-      "resolved": "https://registry.npmjs.org/@chevrotain/utils/-/utils-11.1.1.tgz",
-      "integrity": "sha512-71eTYMzYXYSFPrbg/ZwftSaSDld7UYlS8OQa3lNnn9jzNtpFbaReRRyghzqS7rI3CDaorqpPJJcXGHK+FE1TVQ==",
+      "version": "11.1.2",
+      "resolved": "https://registry.npmjs.org/@chevrotain/utils/-/utils-11.1.2.tgz",
+      "integrity": "sha512-4mudFAQ6H+MqBTfqLmU7G1ZwRzCLfJEooL/fsF6rCX5eePMbGhoy5n4g+G4vlh2muDcsCTJtL+uKbOzWxs5LHA==",
       "license": "Apache-2.0"
     },
     "node_modules/@codemirror/autocomplete": {
@@ -12344,9 +12344,9 @@
       }
     },
     "node_modules/@mermaid-js/parser": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/@mermaid-js/parser/-/parser-1.0.0.tgz",
-      "integrity": "sha512-vvK0Hi/VWndxoh03Mmz6wa1KDriSPjS2XMZL/1l19HFwygiObEEoEwSDxOqyLzzAI6J2PU3261JjTMTO7x+BPw==",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/@mermaid-js/parser/-/parser-1.0.1.tgz",
+      "integrity": "sha512-opmV19kN1JsK0T6HhhokHpcVkqKpF+x2pPDKKM2ThHtZAB5F4PROopk0amuVYK5qMrIA4erzpNm8gmPNJgMDxQ==",
       "license": "MIT",
       "dependencies": {
         "langium": "^4.0.0"
@@ -22106,6 +22106,16 @@
         "win32"
       ]
     },
+    "node_modules/@upsetjs/venn.js": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/@upsetjs/venn.js/-/venn.js-2.0.0.tgz",
+      "integrity": "sha512-WbBhLrooyePuQ1VZxrJjtLvTc4NVfpOyKx0sKqioq9bX1C1m7Jgykkn8gLrtwumBioXIqam8DLxp88Adbue6Hw==",
+      "license": "MIT",
+      "optionalDependencies": {
+        "d3-selection": "^3.0.0",
+        "d3-transition": "^3.0.1"
+      }
+    },
     "node_modules/@xmldom/is-dom-node": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/@xmldom/is-dom-node/-/is-dom-node-1.0.1.tgz",
@@ -23694,16 +23704,16 @@
       }
     },
     "node_modules/chevrotain": {
-      "version": "11.1.1",
-      "resolved": "https://registry.npmjs.org/chevrotain/-/chevrotain-11.1.1.tgz",
-      "integrity": "sha512-f0yv5CPKaFxfsPTBzX7vGuim4oIC1/gcS7LUGdBSwl2dU6+FON6LVUksdOo1qJjoUvXNn45urgh8C+0a24pACQ==",
+      "version": "11.1.2",
+      "resolved": "https://registry.npmjs.org/chevrotain/-/chevrotain-11.1.2.tgz",
+      "integrity": "sha512-opLQzEVriiH1uUQ4Kctsd49bRoFDXGGSC4GUqj7pGyxM3RehRhvTlZJc1FL/Flew2p5uwxa1tUDWKzI4wNM8pg==",
       "license": "Apache-2.0",
       "dependencies": {
-        "@chevrotain/cst-dts-gen": "11.1.1",
-        "@chevrotain/gast": "11.1.1",
-        "@chevrotain/regexp-to-ast": "11.1.1",
-        "@chevrotain/types": "11.1.1",
-        "@chevrotain/utils": "11.1.1",
+        "@chevrotain/cst-dts-gen": "11.1.2",
+        "@chevrotain/gast": "11.1.2",
+        "@chevrotain/regexp-to-ast": "11.1.2",
+        "@chevrotain/types": "11.1.2",
+        "@chevrotain/utils": "11.1.2",
         "lodash-es": "4.17.23"
       }
     },
@@ -25086,9 +25096,9 @@
       }
     },
     "node_modules/d3-format": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/d3-format/-/d3-format-3.1.0.tgz",
-      "integrity": "sha512-YyUI6AEuY/Wpt8KWLgZHsIU86atmikuoOmCfommt0LYHiQSPjvX2AcFc38PX0CBpr2RCyZhjex+NS/LPOv6YqA==",
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/d3-format/-/d3-format-3.1.2.tgz",
+      "integrity": "sha512-AJDdYOdnyRDV5b6ArilzCPPwc1ejkHcoyFarqlPqT7zRYjhavcT3uSrqcMvsgh2CgoPbK3RCwyHaVyxYcP2Arg==",
       "license": "ISC",
       "engines": {
         "node": ">=12"
@@ -25322,9 +25332,9 @@
       }
     },
     "node_modules/dagre-d3-es": {
-      "version": "7.0.13",
-      "resolved": "https://registry.npmjs.org/dagre-d3-es/-/dagre-d3-es-7.0.13.tgz",
-      "integrity": "sha512-efEhnxpSuwpYOKRm/L5KbqoZmNNukHa/Flty4Wp62JRvgH2ojwVgPgdYyr4twpieZnyRDdIH7PY2mopX26+j2Q==",
+      "version": "7.0.14",
+      "resolved": "https://registry.npmjs.org/dagre-d3-es/-/dagre-d3-es-7.0.14.tgz",
+      "integrity": "sha512-P4rFMVq9ESWqmOgK+dlXvOtLwYg0i7u0HBGJER0LZDJT2VHIPAMZ/riPxqJceWMStH5+E61QxFra9kIS3AqdMg==",
       "license": "MIT",
       "dependencies": {
         "d3": "^7.9.0",
@@ -25848,10 +25858,13 @@
       }
     },
     "node_modules/dompurify": {
-      "version": "3.3.0",
-      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.3.0.tgz",
-      "integrity": "sha512-r+f6MYR1gGN1eJv0TVQbhA7if/U7P87cdPl3HN5rikqaBSBxLiCb/b9O+2eG0cxz0ghyU+mU1QkbsOwERMYlWQ==",
+      "version": "3.3.2",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.3.2.tgz",
+      "integrity": "sha512-6obghkliLdmKa56xdbLOpUZ43pAR6xFy1uOrxBaIDjT+yaRuuybLjGS9eVBoSR/UPU5fq3OXClEHLJNGvbxKpQ==",
       "license": "(MPL-2.0 OR Apache-2.0)",
+      "engines": {
+        "node": ">=20"
+      },
       "optionalDependencies": {
         "@types/trusted-types": "^2.0.7"
       }
@@ -33495,27 +33508,28 @@
       }
     },
     "node_modules/mermaid": {
-      "version": "11.12.3",
-      "resolved": "https://registry.npmjs.org/mermaid/-/mermaid-11.12.3.tgz",
-      "integrity": "sha512-wN5ZSgJQIC+CHJut9xaKWsknLxaFBwCPwPkGTSUYrTiHORWvpT8RxGk849HPnpUAQ+/9BPRqYb80jTpearrHzQ==",
+      "version": "11.13.0",
+      "resolved": "https://registry.npmjs.org/mermaid/-/mermaid-11.13.0.tgz",
+      "integrity": "sha512-fEnci+Immw6lKMFI8sqzjlATTyjLkRa6axrEgLV2yHTfv8r+h1wjFbV6xeRtd4rUV1cS4EpR9rwp3Rci7TRWDw==",
       "license": "MIT",
       "dependencies": {
         "@braintree/sanitize-url": "^7.1.1",
-        "@iconify/utils": "^3.0.1",
-        "@mermaid-js/parser": "^1.0.0",
+        "@iconify/utils": "^3.0.2",
+        "@mermaid-js/parser": "^1.0.1",
         "@types/d3": "^7.4.3",
-        "cytoscape": "^3.29.3",
+        "@upsetjs/venn.js": "^2.0.0",
+        "cytoscape": "^3.33.1",
         "cytoscape-cose-bilkent": "^4.1.0",
         "cytoscape-fcose": "^2.2.0",
         "d3": "^7.9.0",
         "d3-sankey": "^0.12.3",
-        "dagre-d3-es": "7.0.13",
-        "dayjs": "^1.11.18",
-        "dompurify": "^3.2.5",
-        "katex": "^0.16.22",
+        "dagre-d3-es": "7.0.14",
+        "dayjs": "^1.11.19",
+        "dompurify": "^3.3.1",
+        "katex": "^0.16.25",
         "khroma": "^2.1.0",
         "lodash-es": "^4.17.23",
-        "marked": "^16.2.1",
+        "marked": "^16.3.0",
         "roughjs": "^4.6.6",
         "stylis": "^4.3.6",
         "ts-dedent": "^2.2.0",
@@ -34312,15 +34326,6 @@
         "marked": "14.0.0"
       }
     },
-    "node_modules/monaco-editor/node_modules/dompurify": {
-      "version": "3.2.7",
-      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.2.7.tgz",
-      "integrity": "sha512-WhL/YuveyGXJaerVlMYGWhvQswa7myDG17P7Vu65EWC05o8vfeNbvNf4d/BOvH99+ZW+LlQsc1GDKMa1vNK6dw==",
-      "license": "(MPL-2.0 OR Apache-2.0)",
-      "optionalDependencies": {
-        "@types/trusted-types": "^2.0.7"
-      }
-    },
     "node_modules/monaco-editor/node_modules/marked": {
       "version": "14.0.0",
       "resolved": "https://registry.npmjs.org/marked/-/marked-14.0.0.tgz",
diff --git a/package.json b/package.json
index e0d5925e8c..fd2d5191e1 100644
--- a/package.json
+++ b/package.json
@@ -172,6 +172,9 @@
     "underscore": "1.13.8",
     "hono": "^4.12.4",
     "@hono/node-server": "^1.19.10",
+    "monaco-editor": {
+      "dompurify": "3.3.2"
+    },
     "serialize-javascript": "^7.0.3",
     "svgo": "^2.8.2"
   },