diff --git a/dao/persondao.test.js b/dao/persondao.test.js
index 8c6b6d634b66fb0e7fe2e351a52e33f00754feac..79f786bff02a1e925f42f400f2d811203a9188d0 100644
--- a/dao/persondao.test.js
+++ b/dao/persondao.test.js
@@ -22,6 +22,10 @@ beforeAll(done => {
   });
 });
 
+afterAll(() => {
+  pool.end();
+});
+
 test("get one person from db", done => {
   function callback(status, data) {
     console.log(