diff --git a/assets/package-lock.json b/assets/package-lock.json
index 2f636fd53..a6e89b293 100644
--- a/assets/package-lock.json
+++ b/assets/package-lock.json
@@ -52,7 +52,7 @@
         "prettier": "^3.8.1",
         "ts-jest": "^29.4.6",
         "typescript": "^5.9.3",
-        "typescript-language-server": "^4.3.3"
+        "typescript-language-server": "^5.3.0"
       }
     },
     "../deps/live_select": {
@@ -11927,16 +11927,16 @@
       }
     },
     "node_modules/typescript-language-server": {
-      "version": "4.4.0",
-      "resolved": "https://registry.npmjs.org/typescript-language-server/-/typescript-language-server-4.4.0.tgz",
-      "integrity": "sha512-enWhplhHX7PA0q+IcKHBMpTQh9I2Bmb3L45rwnkATHMsZ7YLduyyCdOmVUWJSYZfkWaBMiKwi/e2FQo4xsKeWw==",
+      "version": "5.3.0",
+      "resolved": "https://registry.npmjs.org/typescript-language-server/-/typescript-language-server-5.3.0.tgz",
+      "integrity": "sha512-5puofxZHgFdAYtfNpmwCAvgtaYgg8wrUnH30m7Ze3QuguId5RNRadKASpOpyDxTyUdAF51FjhTdjntLw/EuWcQ==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
         "typescript-language-server": "lib/cli.mjs"
       },
       "engines": {
-        "node": ">=18"
+        "node": ">=20"
       }
     },
     "node_modules/uglify-js": {
diff --git a/assets/package.json b/assets/package.json
index b48ff80b6..82bb5ff4d 100644
--- a/assets/package.json
+++ b/assets/package.json
@@ -56,7 +56,7 @@
     "prettier": "^3.8.1",
     "ts-jest": "^29.4.6",
     "typescript": "^5.9.3",
-    "typescript-language-server": "^4.3.3"
+    "typescript-language-server": "^5.3.0"
   },
   "jest": {
     "testEnvironment": "jsdom",