diff --git a/package-lock.json b/package-lock.json
index 9cfb01f..c7c0233 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -29,7 +29,7 @@
         "rollup-plugin-terser": "7.0.2",
         "svelte": "4.2.19",
         "svelte-check": "3.8.6",
-        "svelte-preprocess": "5.1.4",
+        "svelte-preprocess": "6.0.3",
         "tailwindcss": "3.4.13",
         "tslib": "2.7.0",
         "typescript": "5.6.2"
@@ -2645,7 +2645,7 @@
         "svelte": "^3.55.0 || ^4.0.0-next.0 || ^4.0.0 || ^5.0.0-next.0"
       }
     },
-    "node_modules/svelte-preprocess": {
+    "node_modules/svelte-check/node_modules/svelte-preprocess": {
       "version": "5.1.4",
       "resolved": "https://registry.npmjs.org/svelte-preprocess/-/svelte-preprocess-5.1.4.tgz",
       "integrity": "sha512-IvnbQ6D6Ao3Gg6ftiM5tdbR6aAETwjhHV+UKGf5bHGYR69RQvF1ho0JKPcbUON4vy4R7zom13jPjgdOWCQ5hDA==",
@@ -2708,6 +2708,62 @@
         }
       }
     },
+    "node_modules/svelte-preprocess": {
+      "version": "6.0.3",
+      "resolved": "https://registry.npmjs.org/svelte-preprocess/-/svelte-preprocess-6.0.3.tgz",
+      "integrity": "sha512-PLG2k05qHdhmRG7zR/dyo5qKvakhm8IJ+hD2eFRQmMLHp7X3eJnjeupUtvuRpbNiF31RjVw45W+abDwHEmP5OA==",
+      "dev": true,
+      "hasInstallScript": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 18.0.0"
+      },
+      "peerDependencies": {
+        "@babel/core": "^7.10.2",
+        "coffeescript": "^2.5.1",
+        "less": "^3.11.3 || ^4.0.0",
+        "postcss": "^7 || ^8",
+        "postcss-load-config": ">=3",
+        "pug": "^3.0.0",
+        "sass": "^1.26.8",
+        "stylus": ">=0.55",
+        "sugarss": "^2.0.0 || ^3.0.0 || ^4.0.0",
+        "svelte": "^4.0.0 || ^5.0.0-next.100 || ^5.0.0",
+        "typescript": "^5.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@babel/core": {
+          "optional": true
+        },
+        "coffeescript": {
+          "optional": true
+        },
+        "less": {
+          "optional": true
+        },
+        "postcss": {
+          "optional": true
+        },
+        "postcss-load-config": {
+          "optional": true
+        },
+        "pug": {
+          "optional": true
+        },
+        "sass": {
+          "optional": true
+        },
+        "stylus": {
+          "optional": true
+        },
+        "sugarss": {
+          "optional": true
+        },
+        "typescript": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/svelte/node_modules/estree-walker": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-3.0.3.tgz",
diff --git a/package.json b/package.json
index 9f29b02..db07474 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "rollup-plugin-terser": "7.0.2",
     "svelte": "4.2.19",
     "svelte-check": "3.8.6",
-    "svelte-preprocess": "5.1.4",
+    "svelte-preprocess": "6.0.3",
     "tailwindcss": "3.4.13",
     "tslib": "2.7.0",
     "typescript": "5.6.2"