diff --git a/package.json b/package.json
index 82c4435..1b65c81 100644
--- a/package.json
+++ b/package.json
@@ -98,4 +98,4 @@
     "tslint": "^5.8.0",
     "typescript": "^2.4.0"
   }
-}
\ No newline at end of file
+}
diff --git a/test/api.test.ts b/test/api.test.ts
index 9c3d0c7..3e514fc 100644
--- a/test/api.test.ts
+++ b/test/api.test.ts
@@ -1,5 +1,7 @@
+import {} from "jest";
 import * as supertest from "supertest";
-import * as app from "../src/server";
+
+const request = supertest("http://localhost:3000");
 
 describe("GET /api", () => {
   const request = supertest(app);
diff --git a/test/app.test.ts b/test/app.test.ts
index 23cbad7..4fd81d6 100644
--- a/test/app.test.ts
+++ b/test/app.test.ts
@@ -1,11 +1,9 @@
 import * as supertest from "supertest";
-import * as app from "../src/server";
+const request = supertest("http://localhost:3000");
 
 describe("GET /random-url", () => {
-  const request = supertest(app);
-
-  it("should return 404", (done) => {
-    request.get("/reset")
-      .expect(404, done);
+  it("should return 404", () => {
+    return request.get("/reset")
+      .expect(404);
   });
 });
diff --git a/test/contact.test.ts b/test/contact.test.ts
index 6eb39a2..0b8eddb 100644
--- a/test/contact.test.ts
+++ b/test/contact.test.ts
@@ -1,11 +1,9 @@
 import * as supertest from "supertest";
-import * as app from "../src/server";
+const request = supertest("http://localhost:3000");
 
 describe("GET /contact", () => {
-  const request = supertest(app);
-
-  it("should return 200 OK", (done) => {
-    request.get("/contact")
-      .expect(200, done);
+  it("should return 200 OK", () => {
+    return request.get("/contact")
+      .expect(200);
   });
 });
diff --git a/test/home.test.ts b/test/home.test.ts
index baea33c..1c9c8f5 100644
--- a/test/home.test.ts
+++ b/test/home.test.ts
@@ -1,11 +1,9 @@
 import * as supertest from "supertest";
-import * as app from "../src/server";
+const request = supertest("http://localhost:3000");
 
 describe("GET /", () => {
-  const request = supertest(app);
-
-  it("should return 200 OK", (done) => {
-    request.get("/")
-      .expect(200, done);
+  it("should return 200 OK", () => {
+    return request.get("/")
+      .expect(200);
   });
 });
diff --git a/test/user.test.ts b/test/user.test.ts
index 0d26fca..cc97a57 100644
--- a/test/user.test.ts
+++ b/test/user.test.ts
@@ -1,7 +1,5 @@
 import * as supertest from "supertest";
-import * as app from "../src/server";
-
-const request = supertest(app);
+const request = supertest("http://localhost:3000");
 
 describe("GET /login", () => {
   it("should return 200 OK", () => {