diff --git a/package-lock.json b/package-lock.json
index 0768a448..a95975eb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
         "@fontsource/fraunces": "^5.3.0",
         "esbuild": "^0.28.2",
         "fontkit": "^2.0.4",
-        "katex": "^0.18.9",
+        "katex": "^0.19.0",
         "lxgw-wenkai-screen-web": "^1.522.0",
         "material-symbols": "^0.47.5",
         "playwright": "^1.63.0",
@@ -1601,9 +1601,9 @@
       "license": "MIT"
     },
     "node_modules/katex": {
-      "version": "0.18.9",
-      "resolved": "https://registry.npmjs.org/katex/-/katex-0.18.9.tgz",
-      "integrity": "sha512-8ad9RyoKsb/g8/yLFE+KAlP+DhbCTRUNi/V9XGsxn0R+trJJltNwzcDNo0q/DEkOy5fQUQTAQyCXCYSE+OakTQ==",
+      "version": "0.19.0",
+      "resolved": "https://registry.npmjs.org/katex/-/katex-0.19.0.tgz",
+      "integrity": "sha512-v6Tznz3zJ7u3niRCoDTsumM2+HA2XXcCu+WAacCeHD2z3p9A9Ks987o5FzfTGBN0e8A0vjEgIDvLbICrXpdw/Q==",
       "dev": true,
       "funding": [
         "https://opencollective.com/katex",
diff --git a/package.json b/package.json
index 9e210ced..c970d804 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "@fontsource/fraunces": "^5.3.0",
     "esbuild": "^0.28.2",
     "fontkit": "^2.0.4",
-    "katex": "^0.18.9",
+    "katex": "^0.19.0",
     "lxgw-wenkai-screen-web": "^1.522.0",
     "material-symbols": "^0.47.5",
     "playwright": "^1.63.0",