diff --git a/tsconfig.json b/tsconfig.json
index 5a7ee57..997c4e3 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -4,7 +4,8 @@
     "lib": ["ES2021"],
     "sourceMap": true,
     "declaration": true,
-    "incremental": true
+    "incremental": true,
+    "strict": true
   },
   "include": ["base58/index.ts"]
 }