diff --git a/package.json b/package.json
index ad58a5d2..14a50cad 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   ],
   "scripts": {
     "setup": "yarn install && yarn allow-scripts",
-    "build": "tsc --project ./tsconfig.prod.json && tsc --project ./tsconfig.test.json",
+    "build": "tsc --project ./tsconfig.json && tsc --project ./tsconfig.test.json",
     "lint:eslint": "eslint . --cache --ext js,ts",
     "lint:json": "prettier '**/*.json' --ignore-path .gitignore",
     "lint": "yarn lint:eslint && yarn lint:json --check",
diff --git a/tsconfig.json b/tsconfig.json
index 43d62314..6dbd878e 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -2,10 +2,15 @@
   "compilerOptions": {
     "declaration": true,
     "esModuleInterop": true,
+    "inlineSources": true,
+    "lib": ["ES2020"],
     "module": "CommonJS",
-    "moduleResolution": "node",
+    "moduleResolution": "Node",
+    "outDir": "dist",
+    "rootDir": "src",
     "sourceMap": true,
     "target": "ES2017",
     "typeRoots": ["./node_modules/@types"]
-  }
+  },
+  "include": ["./src/**/*.ts"]
 }
diff --git a/tsconfig.prod.json b/tsconfig.prod.json
deleted file mode 100644
index bbf00f68..00000000
--- a/tsconfig.prod.json
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "extends": "./tsconfig.json",
-  "compilerOptions": {
-    "outDir": "dist"
-  },
-  "include": ["./src/*.ts"]
-}
diff --git a/tsconfig.test.json b/tsconfig.test.json
index a90e7afb..4a93d68b 100644
--- a/tsconfig.test.json
+++ b/tsconfig.test.json
@@ -2,7 +2,10 @@
   "extends": "./tsconfig.json",
   "compilerOptions": {
     "declaration": false,
+    "inlineSources": false,
+    "rootDir": "",
+    "outDir": "",
     "sourceMap": false
   },
-  "files": ["./test/index.ts"]
+  "include": ["./test/index.ts"]
 }