diff --git a/src/tests/auth/auth_logout.spec.ts b/src/tests/auth/auth_logout.spec.ts
index 0431061..5077cdd 100644
--- a/src/tests/auth/auth_logout.spec.ts
+++ b/src/tests/auth/auth_logout.spec.ts
@@ -11,12 +11,12 @@ beforeAll(async () => {
     jest.setTimeout(20000);
     const res_login = await axios.post(base + '/api/auth/login', { username: "demo", password: "demo" });
     await axios.post(base + '/api/users', {
-        "firstname": "demo_logout",
-        "middlename": "demo_logout",
-        "lastname": "demo_logout",
-        "username": "demo_logout",
-        "password": "demo_logout",
-        "email": "demo_logout@dev.lauf-fuer-kaya.de"
+        "firstname": "demo_logoutASD123",
+        "middlename": "demo_logoutASD123",
+        "lastname": "demo_logoutASD123",
+        "username": "demo_logoutASD123",
+        "password": "demo_logoutASD123",
+        "email": "demo_logoutASD123@dev.lauf-fuer-kaya.de"
     }, {
         headers: { "authorization": "Bearer " + res_login.data["access_token"] },
         validateStatus: undefined
@@ -26,7 +26,7 @@ beforeAll(async () => {
 describe('POST /api/auth/logout valid', () => {
     let refresh_coookie;
     it('valid logout with token in cookie should return 200', async () => {
-        const res_login = await axios.post(base + '/api/auth/login', { username: "demo_logout", password: "demo_logout" });
+        const res_login = await axios.post(base + '/api/auth/login', { username: "demo_logoutASD123", password: "demo_logoutASD123" });
         refresh_coookie = res_login.headers["set-cookie"];
         const res = await axios.post(base + '/api/auth/logout', null, {
             headers: { "Cookie": refresh_coookie },
@@ -35,7 +35,7 @@ describe('POST /api/auth/logout valid', () => {
         expect(res.status).toEqual(200);
     });
     it('valid logout with token in body should return 200', async () => {
-        const res_login = await axios.post(base + '/api/auth/login', { username: "demo_logout", password: "demo_logout" });
+        const res_login = await axios.post(base + '/api/auth/login', { username: "demo_logoutASD123", password: "demo_logoutASD123" });
         const res = await axios.post(base + '/api/auth/logout', { token: res_login.data["refresh_token"] }, axios_config);
         expect(res.status).toEqual(200);
     });
diff --git a/src/tests/auth/auth_refresh.spec.ts b/src/tests/auth/auth_refresh.spec.ts
index 0c0792a..1422295 100644
--- a/src/tests/auth/auth_refresh.spec.ts
+++ b/src/tests/auth/auth_refresh.spec.ts
@@ -11,12 +11,12 @@ beforeAll(async () => {
     jest.setTimeout(20000);
     const res_login = await axios.post(base + '/api/auth/login', { username: "demo", password: "demo" });
     await axios.post(base + '/api/users', {
-        "firstname": "demo_refresh",
-        "middlename": "demo_refresh",
-        "lastname": "demo_refresh",
-        "username": "demo_refresh",
-        "password": "demo_refresh",
-        "email": "demo_refresh@dev.lauf-fuer-kaya.de"
+        "firstname": "demo_refreshASD312",
+        "middlename": "demo_refreshASD312",
+        "lastname": "demo_refreshASD312",
+        "username": "demo_refreshASD312",
+        "password": "demo_refreshASD312",
+        "email": "demo_refreshASD312@dev.lauf-fuer-kaya.de"
     }, {
         headers: { "authorization": "Bearer " + res_login.data["access_token"] },
         validateStatus: undefined
@@ -25,7 +25,7 @@ beforeAll(async () => {
 
 describe('POST /api/auth/refresh valid', () => {
     it('valid refresh with token in cookie should return 200', async () => {
-        const res_login = await axios.post(base + '/api/auth/login', { username: "demo_refresh", password: "demo_refresh" });
+        const res_login = await axios.post(base + '/api/auth/login', { username: "demo_refreshASD312", password: "demo_refreshASD312" });
         const res = await axios.post(base + '/api/auth/refresh', null, {
             headers: { "Cookie": res_login.headers["set-cookie"] },
             validateStatus: undefined
@@ -33,7 +33,7 @@ describe('POST /api/auth/refresh valid', () => {
         expect(res.status).toEqual(200);
     });
     it('valid refresh with token in body should return 200', async () => {
-        const res_login = await axios.post(base + '/api/auth/login', { username: "demo_refresh", password: "demo_refresh" });
+        const res_login = await axios.post(base + '/api/auth/login', { username: "demo_refreshASD312", password: "demo_refreshASD312" });
         const res = await axios.post(base + '/api/auth/refresh', { token: res_login.data["refresh_token"] }, axios_config);
         expect(res.status).toEqual(200);
     });
diff --git a/src/tests/auth/auth_reset.spec.ts b/src/tests/auth/auth_reset.spec.ts
index 02f0ee0..626ef02 100644
--- a/src/tests/auth/auth_reset.spec.ts
+++ b/src/tests/auth/auth_reset.spec.ts
@@ -11,23 +11,23 @@ beforeAll(async () => {
     jest.setTimeout(20000);
     const res_login = await axios.post(base + '/api/auth/login', { username: "demo", password: "demo" });
     await axios.post(base + '/api/users', {
-        "firstname": "demo_reset",
-        "middlename": "demo_reset",
-        "lastname": "demo_reset",
-        "username": "demo_reset",
-        "password": "demo_reset",
-        "email": "demo_reset1@dev.lauf-fuer-kaya.de"
+        "firstname": "demo_resetASD312",
+        "middlename": "demo_resetASD312",
+        "lastname": "demo_resetASD312",
+        "username": "demo_resetASD312",
+        "password": "demo_resetASD312",
+        "email": "demo_resetASD3121@dev.lauf-fuer-kaya.de"
     }, {
         headers: { "authorization": "Bearer " + res_login.data["access_token"] },
         validateStatus: undefined
     });
     await axios.post(base + '/api/users', {
-        "firstname": "demo_reset2",
-        "middlename": "demo_reset2",
-        "lastname": "demo_reset2",
-        "username": "demo_reset2",
-        "password": "demo_reset2",
-        "email": "demo_reset2@dev.lauf-fuer-kaya.de"
+        "firstname": "demo_resetASD3122",
+        "middlename": "demo_resetASD3122",
+        "lastname": "demo_resetASD3122",
+        "username": "demo_resetASD3122",
+        "password": "demo_resetASD3122",
+        "email": "demo_resetASD3122@dev.lauf-fuer-kaya.de"
     }, {
         headers: { "authorization": "Bearer " + res_login.data["access_token"] },
         validateStatus: undefined
@@ -37,7 +37,7 @@ beforeAll(async () => {
 describe('POST /api/auth/reset valid', () => {
     let reset_token;
     it('valid reset token request should return 200 (500 w/o correct auth)', async () => {
-        const res1 = await axios.post(base + '/api/auth/reset', { email: "demo_reset1@dev.lauf-fuer-kaya.de" }, axios_config);
+        const res1 = await axios.post(base + '/api/auth/reset', { email: "demo_resetASD3121@dev.lauf-fuer-kaya.de" }, axios_config);
         reset_token = res1.data.resetToken;
         expect(res1.status).toEqual(200);
     });
@@ -45,8 +45,8 @@ describe('POST /api/auth/reset valid', () => {
 // ---------------
 describe('POST /api/auth/reset invalid requests', () => {
     it('request another password reset before the timeout should return 406', async () => {
-        const res1 = await axios.post(base + '/api/auth/reset', { email: "demo_reset2@dev.lauf-fuer-kaya.de" }, axios_config);
-        const res2 = await axios.post(base + '/api/auth/reset', { email: "demo_reset2@dev.lauf-fuer-kaya.de" }, axios_config);
+        const res1 = await axios.post(base + '/api/auth/reset', { email: "demo_resetASD3122@dev.lauf-fuer-kaya.de" }, axios_config);
+        const res2 = await axios.post(base + '/api/auth/reset', { email: "demo_resetASD3122@dev.lauf-fuer-kaya.de" }, axios_config);
         expect(res2.status).toEqual(406);
     });
 });