diff --git a/frontend/package.json b/frontend/package.json
index f3b79ad16..23d175d6c 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -22,7 +22,7 @@
     "i18n:mark": "i18n-unused mark-unused"
   },
   "dependencies": {
-    "@shikijs/monaco": "^3.20.0",
+    "@shikijs/monaco": "^3.21.0",
     "@sveltejs/adapter-static": "^3.0.10",
     "@sveltejs/kit": "^2.49.3",
     "@tanstack/table-core": "^8.21.3",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index d3a612e76..24374d5a2 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -56,8 +56,8 @@ importers:
   frontend:
     dependencies:
       '@shikijs/monaco':
-        specifier: ^3.20.0
-        version: 3.20.0
+        specifier: ^3.21.0
+        version: 3.21.0
       '@sveltejs/adapter-static':
         specifier: ^3.0.10
         version: 3.0.10(@sveltejs/kit@2.49.3(@sveltejs/vite-plugin-svelte@6.2.3(svelte@5.46.1)(vite@7.3.1(@types/node@25.0.3)(jiti@2.6.1)(lightningcss@1.30.2)(terser@5.44.0)(tsx@4.21.0)(yaml@2.8.1)))(svelte@5.46.1)(typescript@5.9.3)(vite@7.3.1(@types/node@25.0.3)(jiti@2.6.1)(lightningcss@1.30.2)(terser@5.44.0)(tsx@4.21.0)(yaml@2.8.1)))
@@ -1484,9 +1484,6 @@ packages:
   '@selderee/plugin-htmlparser2@0.11.0':
     resolution: {integrity: sha512-P33hHGdldxGabLFjPPpaTxVolMrzrcegejx+0GxjrIb9Zv48D8yAIA/QTDR2dFl7Uz7urX8aX6+5bCZslr+gWQ==}
 
-  '@shikijs/core@3.20.0':
-    resolution: {integrity: sha512-f2ED7HYV4JEk827mtMDwe/yQ25pRiXZmtHjWF8uzZKuKiEsJR7Ce1nuQ+HhV9FzDcbIo4ObBCD9GPTzNuy9S1g==}
-
   '@shikijs/core@3.21.0':
     resolution: {integrity: sha512-AXSQu/2n1UIQekY8euBJlvFYZIw0PHY63jUzGbrOma4wPxzznJXTXkri+QcHeBNaFxiiOljKxxJkVSoB3PjbyA==}
 
@@ -1499,15 +1496,12 @@ packages:
   '@shikijs/langs@3.21.0':
     resolution: {integrity: sha512-g6mn5m+Y6GBJ4wxmBYqalK9Sp0CFkUqfNzUy2pJglUginz6ZpWbaWjDB4fbQ/8SHzFjYbtU6Ddlp1pc+PPNDVA==}
 
-  '@shikijs/monaco@3.20.0':
-    resolution: {integrity: sha512-p2sUd6j/kxSzerL/rYpOgLOg+ssfFPeUjKxxKhK2SiMMKJTkw+Y84BmXMwNqFsdXr/4q3OMEjQ8ptRXHWpzdKQ==}
+  '@shikijs/monaco@3.21.0':
+    resolution: {integrity: sha512-vYUBk5e89vlJbrGuLXaL+gQNGRVYUQOTEeWOnWb89ZL4hwDOBdbPftm0m8cPuD6H6HOdw+C48rGnATuMmGTaJg==}
 
   '@shikijs/themes@3.21.0':
     resolution: {integrity: sha512-BAE4cr9EDiZyYzwIHEk7JTBJ9CzlPuM4PchfcA5ao1dWXb25nv6hYsoDiBq2aZK9E3dlt3WB78uI96UESD+8Mw==}
 
-  '@shikijs/types@3.20.0':
-    resolution: {integrity: sha512-lhYAATn10nkZcBQ0BlzSbJA3wcmL5MXUUF8d2Zzon6saZDlToKaiRX60n2+ZaHJCmXEcZRWNzn+k9vplr8Jhsw==}
-
   '@shikijs/types@3.21.0':
     resolution: {integrity: sha512-zGrWOxZ0/+0ovPY7PvBU2gIS9tmhSUUt30jAcNV0Bq0gb2S98gwfjIs1vxlmH5zM7/4YxLamT6ChlqqAJmPPjA==}
 
@@ -4510,13 +4504,6 @@ snapshots:
       domhandler: 5.0.3
       selderee: 0.11.0
 
-  '@shikijs/core@3.20.0':
-    dependencies:
-      '@shikijs/types': 3.20.0
-      '@shikijs/vscode-textmate': 10.0.2
-      '@types/hast': 3.0.4
-      hast-util-to-html: 9.0.5
-
   '@shikijs/core@3.21.0':
     dependencies:
       '@shikijs/types': 3.21.0
@@ -4539,21 +4526,16 @@ snapshots:
     dependencies:
       '@shikijs/types': 3.21.0
 
-  '@shikijs/monaco@3.20.0':
+  '@shikijs/monaco@3.21.0':
     dependencies:
-      '@shikijs/core': 3.20.0
-      '@shikijs/types': 3.20.0
+      '@shikijs/core': 3.21.0
+      '@shikijs/types': 3.21.0
       '@shikijs/vscode-textmate': 10.0.2
 
   '@shikijs/themes@3.21.0':
     dependencies:
       '@shikijs/types': 3.21.0
 
-  '@shikijs/types@3.20.0':
-    dependencies:
-      '@shikijs/vscode-textmate': 10.0.2
-      '@types/hast': 3.0.4
-
   '@shikijs/types@3.21.0':
     dependencies:
       '@shikijs/vscode-textmate': 10.0.2