diff --git a/THIRD_PARTY_NOTICES.md b/THIRD_PARTY_NOTICES.md
index fc8f4a1..70144c5 100644
--- a/THIRD_PARTY_NOTICES.md
+++ b/THIRD_PARTY_NOTICES.md
@@ -82,7 +82,7 @@ eRAW itself is distributed under GPL-3.0-or-later. Dependency copyrights remain
 | esbuild | 0.28.1 | development | MIT |
 | fdir | 6.5.0 | development | MIT |
 | fsevents | 2.3.3 | development | MIT |
-| katex | 0.16.22 | runtime | MIT |
+| katex | 0.18.1 | runtime | MIT |
 | nanoid | 3.3.18 | development | MIT |
 | picocolors | 1.1.1 | development | ISC |
 | picomatch | 4.0.5 | development | MIT |
diff --git a/package-lock.json b/package-lock.json
index e583791..27b9c44 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
         "@tauri-apps/plugin-clipboard-manager": "^2.3.2",
         "@tauri-apps/plugin-dialog": "^2.0.0",
         "echarts": "^6.1.0",
-        "katex": "^0.16.22"
+        "katex": "^0.18.1"
       },
       "devDependencies": {
         "@tauri-apps/cli": "^2.0.0",
@@ -1214,9 +1214,9 @@
       }
     },
     "node_modules/katex": {
-      "version": "0.16.22",
-      "resolved": "https://registry.npmmirror.com/katex/-/katex-0.16.22.tgz",
-      "integrity": "sha512-XCHRdUw4lf3SKBaJe4EvgqIuWwkPSo9XoeO8GjQW94Bp7TWv9hNhzZjZ+OH9yf1UmLygb7DIT5GSFQiyt16zYg==",
+      "version": "0.18.1",
+      "resolved": "https://registry.npmjs.org/katex/-/katex-0.18.1.tgz",
+      "integrity": "sha512-Td8GCYSxDAoMhHOlKmCFMJ/hz5qlAAb71n66Dryw9nfCVfumLo7nhuotbvKom/XPADmrYC3O5QR71EPq4DarJQ==",
       "funding": [
         "https://opencollective.com/katex",
         "https://github.com/sponsors/katex"
diff --git a/package.json b/package.json
index ef7e718..2b98dee 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "@tauri-apps/plugin-clipboard-manager": "^2.3.2",
     "@tauri-apps/plugin-dialog": "^2.0.0",
     "echarts": "^6.1.0",
-    "katex": "^0.16.22"
+    "katex": "^0.18.1"
   },
   "devDependencies": {
     "@tauri-apps/cli": "^2.0.0",
diff --git a/tests/help-window.test.mjs b/tests/help-window.test.mjs
index 799993f..04e0c63 100644
--- a/tests/help-window.test.mjs
+++ b/tests/help-window.test.mjs
@@ -122,7 +122,7 @@ test("the application distributes no named font or font file", () => {
   assert.doesNotMatch(styleSource, /@font-face|Cascadia|Consolas|Segoe|Microsoft YaHei/);
   assert.match(pixelOverlaySource, /ui-monospace, monospace/);
   assert.doesNotMatch(pixelOverlaySource, /Cascadia|Consolas|Segoe|Microsoft YaHei/);
-  assert.equal(JSON.parse(packageSource).dependencies.katex, "^0.16.22");
+  assert.equal(JSON.parse(packageSource).dependencies.katex, "^0.18.1");
   assert.match(appSource, /<strong>KaTeX<\/strong>/);
   assert.match(appSource, /<code>MIT<\/code>/);
   assert.match(fontPolicySource, /MathML/);