diff --git a/package-lock.json b/package-lock.json
index 4ab1076..4ca0142 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@gmrchk/cli-testing-library",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 21e6540..7df325f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gmrchk/cli-testing-library",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "Small but powerful library for testing CLI the way it is used by people.",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
diff --git a/src/index.ts b/src/index.ts
index ef2fe43..ae61c32 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -126,7 +126,7 @@ export const prepareEnvironment = async (): Promise<CLITestEnvironment> => {
             };
             const wait = (delay: number): Promise<void> => {
                 return new Promise((resolve) => {
-                    setTimeout(resolve, delay).unref();
+                    setTimeout(resolve, delay);
                 });
             };
             const waitForFinish = async (): Promise<ExecResult> => {