diff --git a/tsconfig.base.json b/tsconfig.base.json
index 1c399df..01ac0f6 100644
--- a/tsconfig.base.json
+++ b/tsconfig.base.json
@@ -4,6 +4,7 @@
     "target": "esnext",
     "moduleResolution": "node",
     "allowJs": true,
+    "checkJs": true,
     "declaration": true,
     "noImplicitThis": true,
     "alwaysStrict": true,
diff --git a/tsconfig.cjs.json b/tsconfig.cjs.json
index 6072d70..c9fa405 100644
--- a/tsconfig.cjs.json
+++ b/tsconfig.cjs.json
@@ -1,7 +1,8 @@
 {
   "extends": "./tsconfig.base.json",
   "compilerOptions": {
+    "outDir": "cjs",
     "module": "commonjs",
-    "outDir": "cjs"
+    "esModuleInterop": true
   }
 }
diff --git a/tsconfig.esm.json b/tsconfig.esm.json
index 321584b..f6fd47d 100644
--- a/tsconfig.esm.json
+++ b/tsconfig.esm.json
@@ -1,7 +1,6 @@
 {
   "extends": "./tsconfig.base.json",
   "compilerOptions": {
-    "module": "esnext",
     "outDir": "esm"
   }
 }