diff --git a/tsconfig.json b/tsconfig.json
index 1ec6eeb..70fc938 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,10 +1,11 @@
 {
   "extends": "@tsconfig/svelte/tsconfig.json",
   "compilerOptions": {
+    "strict": true,
+    "noUncheckedIndexedAccess": true,
     "target": "ESNext",
     "useDefineForClassFields": true,
     "module": "ESNext",
-    "resolveJsonModule": true,
     "baseUrl": ".",
     "allowJs": true,
     "checkJs": true,