diff --git a/commafeed-client/package-lock.json b/commafeed-client/package-lock.json
index e2328d9e..4e8a00f5 100644
--- a/commafeed-client/package-lock.json
+++ b/commafeed-client/package-lock.json
@@ -24,7 +24,7 @@
                 "dayjs": "^1.11.17",
                 "escape-string-regexp": "^5.0.0",
                 "interweave": "^13.1.1",
-                "monaco-editor": "^0.52.2",
+                "monaco-editor": "^0.54.0",
                 "mousetrap": "^1.6.5",
                 "react": "^19.2.0",
                 "react-async-hook": "^4.0.0",
@@ -3445,6 +3445,12 @@
                 "csstype": "^3.0.2"
             }
         },
+        "node_modules/dompurify": {
+            "version": "3.1.7",
+            "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.1.7.tgz",
+            "integrity": "sha512-VaTstWtsneJY8xzy7DekmYWEOZcmzIe3Qb3zPd4STve1OBTa+e+WmS1ITQec1fZYXI3HCsOZZiSMpG6oxoWMWQ==",
+            "license": "(MPL-2.0 OR Apache-2.0)"
+        },
         "node_modules/dunder-proto": {
             "version": "1.0.1",
             "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
@@ -4517,6 +4523,18 @@
                 "@jridgewell/sourcemap-codec": "^1.5.5"
             }
         },
+        "node_modules/marked": {
+            "version": "14.0.0",
+            "resolved": "https://registry.npmjs.org/marked/-/marked-14.0.0.tgz",
+            "integrity": "sha512-uIj4+faQ+MgHgwUW1l2PsPglZLOLOT1uErt06dAPtx2kjteLAkbsd/0FiYg/MGS+i7ZKLb7w2WClxHkzOOuryQ==",
+            "license": "MIT",
+            "bin": {
+                "marked": "bin/marked.js"
+            },
+            "engines": {
+                "node": ">= 18"
+            }
+        },
         "node_modules/math-intrinsics": {
             "version": "1.1.0",
             "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
@@ -4615,11 +4633,15 @@
             }
         },
         "node_modules/monaco-editor": {
-            "version": "0.52.2",
-            "resolved": "https://registry.npmjs.org/monaco-editor/-/monaco-editor-0.52.2.tgz",
-            "integrity": "sha512-GEQWEZmfkOGLdd3XK8ryrfWz3AIP8YymVXiPHEdewrUq7mh0qrKrfHLNCXcbB6sTnMLnOZ3ztSiKcciFUkIJwQ==",
+            "version": "0.54.0",
+            "resolved": "https://registry.npmjs.org/monaco-editor/-/monaco-editor-0.54.0.tgz",
+            "integrity": "sha512-hx45SEUoLatgWxHKCmlLJH81xBo0uXP4sRkESUpmDQevfi+e7K1VuiSprK6UpQ8u4zOcKNiH0pMvHvlMWA/4cw==",
             "license": "MIT",
-            "peer": true
+            "peer": true,
+            "dependencies": {
+                "dompurify": "3.1.7",
+                "marked": "14.0.0"
+            }
         },
         "node_modules/moo": {
             "version": "0.5.2",
diff --git a/commafeed-client/package.json b/commafeed-client/package.json
index ba0b7268..e8eb1662 100644
--- a/commafeed-client/package.json
+++ b/commafeed-client/package.json
@@ -31,7 +31,7 @@
         "dayjs": "^1.11.17",
         "escape-string-regexp": "^5.0.0",
         "interweave": "^13.1.1",
-        "monaco-editor": "^0.52.2",
+        "monaco-editor": "^0.54.0",
         "mousetrap": "^1.6.5",
         "react": "^19.2.0",
         "react-async-hook": "^4.0.0",