diff --git a/commafeed-client/package-lock.json b/commafeed-client/package-lock.json
index 4fcdfee6..9496c809 100644
--- a/commafeed-client/package-lock.json
+++ b/commafeed-client/package-lock.json
@@ -24,7 +24,7 @@
                 "dayjs": "^1.11.19",
                 "escape-string-regexp": "^5.0.0",
                 "interweave": "^13.1.1",
-                "monaco-editor": "^0.54.0",
+                "monaco-editor": "^0.55.1",
                 "mousetrap": "^1.6.5",
                 "react": "^19.2.0",
                 "react-async-hook": "^4.0.0",
@@ -2468,6 +2468,13 @@
             "dev": true,
             "license": "MIT"
         },
+        "node_modules/@types/trusted-types": {
+            "version": "2.0.7",
+            "resolved": "https://registry.npmjs.org/@types/trusted-types/-/trusted-types-2.0.7.tgz",
+            "integrity": "sha512-ScaPdn1dQczgbl0QFTeTOmVHFULt394XJgOQNoyVhZ6r2vLnMLJfBPd53SB52T/3G36VI1/g2MZaX0cwDuXsfw==",
+            "license": "MIT",
+            "optional": true
+        },
         "node_modules/@types/use-sync-external-store": {
             "version": "0.0.6",
             "resolved": "https://registry.npmjs.org/@types/use-sync-external-store/-/use-sync-external-store-0.0.6.tgz",
@@ -3409,10 +3416,13 @@
             }
         },
         "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)"
+            "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/dunder-proto": {
             "version": "1.0.1",
@@ -4589,13 +4599,13 @@
             }
         },
         "node_modules/monaco-editor": {
-            "version": "0.54.0",
-            "resolved": "https://registry.npmjs.org/monaco-editor/-/monaco-editor-0.54.0.tgz",
-            "integrity": "sha512-hx45SEUoLatgWxHKCmlLJH81xBo0uXP4sRkESUpmDQevfi+e7K1VuiSprK6UpQ8u4zOcKNiH0pMvHvlMWA/4cw==",
+            "version": "0.55.1",
+            "resolved": "https://registry.npmjs.org/monaco-editor/-/monaco-editor-0.55.1.tgz",
+            "integrity": "sha512-jz4x+TJNFHwHtwuV9vA9rMujcZRb0CEilTEwG2rRSpe/A7Jdkuj8xPKttCgOh+v/lkHy7HsZ64oj+q3xoAFl9A==",
             "license": "MIT",
             "peer": true,
             "dependencies": {
-                "dompurify": "3.1.7",
+                "dompurify": "3.2.7",
                 "marked": "14.0.0"
             }
         },
diff --git a/commafeed-client/package.json b/commafeed-client/package.json
index 7764a1d1..25cb2651 100644
--- a/commafeed-client/package.json
+++ b/commafeed-client/package.json
@@ -31,7 +31,7 @@
         "dayjs": "^1.11.19",
         "escape-string-regexp": "^5.0.0",
         "interweave": "^13.1.1",
-        "monaco-editor": "^0.54.0",
+        "monaco-editor": "^0.55.1",
         "mousetrap": "^1.6.5",
         "react": "^19.2.0",
         "react-async-hook": "^4.0.0",