diff --git a/package.json b/package.json
index fb84302..92d233d 100644
--- a/package.json
+++ b/package.json
@@ -69,5 +69,8 @@
     "hooks": {
       "pre-commit": "lint-staged"
     }
+  },
+  "volta": {
+    "node": "16.20.2"
   }
 }
diff --git a/src/__tests__/tsconfig-loader.test.ts b/src/__tests__/tsconfig-loader.test.ts
index bee2624..c3693c0 100644
--- a/src/__tests__/tsconfig-loader.test.ts
+++ b/src/__tests__/tsconfig-loader.test.ts
@@ -1,5 +1,6 @@
 import { tsConfigLoader, walkForTsConfig } from "../tsconfig-loader";
 import { join, resolve } from "path";
+import { getTsconfig } from "get-tsconfig";
 
 describe("tsconfig-loader", () => {
   it("should find tsconfig in cwd", () => {
@@ -207,37 +208,7 @@ describe("loadSyncDefault", () => {
 
     expect(result).toEqual({
       baseUrl: undefined,
-      paths: { foo: ['bar'] },
-      tsConfigPath: resolve(cwd, 'tsconfig.json')
-    });
-  });
-
-  it("should load a config with string extends and overwrite all options", () => {
-    const cwd = resolve(__dirname, "../../example/extend-overwrite")
-    const tsConfigPath = resolve(cwd, 'nested/tsconfig.json');
-
-    const result = tsConfigLoader({
-      cwd,
-      getEnv: (name: string) => name === 'TS_NODE_PROJECT' ? tsConfigPath : undefined
-    });
-
-    expect(result).toEqual({
-      baseUrl: "./kalle",
-      paths: { foo: ["bar2"] },
-      strict: true,
-      tsConfigPath
-    });
-  });
-
-  it("should load a config with string extends from node_modules and overwrite all options", () => {
-    const cwd = resolve(__dirname, "../../example/extend-node-module")
-
-    const result = tsConfigLoader({ cwd, getEnv: () => undefined });
-
-    expect(result).toEqual({
-      baseUrl: "./kalle",
-      paths: { foo: ["bar2"] },
-      strict: true,
+      paths: { foo: ["bar"] },
       tsConfigPath: resolve(cwd, "tsconfig.json")
     });
   });
@@ -289,3 +260,39 @@ describe("loadSyncDefault", () => {
     });
   });
 });
+
+describe("getTsconfig", () => {
+  it("should load a config with string extends and overwrite all options", () => {
+    const tsConfigPath = resolve(__dirname, "../../example/extend-overwrite/nested/tsconfig.json");
+
+    const result = getTsconfig(tsConfigPath);
+
+    expect(result).toEqual({
+      config: {
+        compilerOptions: {
+          baseUrl: "./kalle",
+          paths: { foo: ["bar2"] },
+          strict: true,
+        }
+      },
+      path: tsConfigPath
+    });
+  });
+
+  it("should load a config with string extends from node_modules and overwrite all options", () => {
+    const tsConfigPath = resolve(__dirname, "../../example/extend-node-module/tsconfig.json")
+
+    const result = getTsconfig(tsConfigPath);
+
+    expect(result).toEqual({
+      config: {
+        compilerOptions: {
+          baseUrl: "./kalle",
+          paths: { foo: ["bar2"] },
+          strict: true,
+        }
+      },
+      path: tsConfigPath
+    });
+  });
+});
diff --git a/src/tsconfig-loader.ts b/src/tsconfig-loader.ts
index 17eb867..e6556fb 100644
--- a/src/tsconfig-loader.ts
+++ b/src/tsconfig-loader.ts
@@ -64,7 +64,6 @@ function loadSyncDefault(
 
   return {
     tsConfigPath: configPath,
-    ...tsconfig?.config.compilerOptions,
     baseUrl: baseUrl || tsconfig?.config.compilerOptions?.baseUrl,
     paths: tsconfig?.config.compilerOptions?.paths ?? {},
   };