diff --git a/admin/src/Layout/Layout.tsx b/admin/src/Layout/Layout.tsx
index b7df89a..f096e02 100644
--- a/admin/src/Layout/Layout.tsx
+++ b/admin/src/Layout/Layout.tsx
@@ -14,7 +14,7 @@ const Layout: React.FC<LayoutProps> = ({ children }) => {
   useEffect(() => {
     if (Cookies.get("token")) {
       const verifyToken = async () => {
-        const response = await fetch("http://localhost:8002/api/verifyToken", {
+        const response = await fetch("https://backend.insta.the1s.de/api/verifyToken", {
           method: "GET",
           headers: {
             Authorization: `Bearer ${Cookies.get("token")}`,
diff --git a/admin/src/components/ItemTable.tsx b/admin/src/components/ItemTable.tsx
index a1c9714..8c196ed 100644
--- a/admin/src/components/ItemTable.tsx
+++ b/admin/src/components/ItemTable.tsx
@@ -59,7 +59,7 @@ const ItemTable: React.FC = () => {
     const fetchData = async () => {
       setIsLoading(true);
       try {
-        const response = await fetch("http://localhost:8002/api/allItems", {
+        const response = await fetch("https://backend.insta.the1s.de/api/allItems", {
           method: "GET",
           headers: {
             Authorization: `Bearer ${Cookies.get("token")}`,
diff --git a/admin/src/components/LoanTable.tsx b/admin/src/components/LoanTable.tsx
index 43dcb47..ba39fa1 100644
--- a/admin/src/components/LoanTable.tsx
+++ b/admin/src/components/LoanTable.tsx
@@ -55,7 +55,7 @@ const LoanTable: React.FC = () => {
     const fetchData = async () => {
       setIsLoading(true);
       try {
-        const response = await fetch("http://localhost:8002/api/allLoans", {
+        const response = await fetch("https://backend.insta.the1s.de/api/allLoans", {
           method: "GET",
           headers: {
             Authorization: `Bearer ${Cookies.get("token")}`,
diff --git a/admin/src/utils/fetcher.ts b/admin/src/utils/fetcher.ts
index a3bee7d..fbab133 100644
--- a/admin/src/utils/fetcher.ts
+++ b/admin/src/utils/fetcher.ts
@@ -1,7 +1,7 @@
 import Cookies from "js-cookie";
 
 export const fetchUserData = async () => {
-  const response = await fetch("http://localhost:8002/api/allUsers", {
+  const response = await fetch("https://backend.insta.the1s.de/api/allUsers", {
     headers: {
       Authorization: `Bearer ${Cookies.get("token")}`,
     },
diff --git a/admin/src/utils/loginUser.ts b/admin/src/utils/loginUser.ts
index 3a65c2b..d72cc58 100644
--- a/admin/src/utils/loginUser.ts
+++ b/admin/src/utils/loginUser.ts
@@ -13,7 +13,7 @@ export const loginFunc = async (
   password: string
 ): Promise<LoginResult> => {
   try {
-    const response = await fetch("http://localhost:8002/api/loginAdmin", {
+    const response = await fetch("https://backend.insta.the1s.de/api/loginAdmin", {
       method: "POST",
       headers: { "Content-Type": "application/json" },
       body: JSON.stringify({ username, password }),
diff --git a/admin/src/utils/userActions.ts b/admin/src/utils/userActions.ts
index 4397755..7cdcaef 100644
--- a/admin/src/utils/userActions.ts
+++ b/admin/src/utils/userActions.ts
@@ -3,7 +3,7 @@ import Cookies from "js-cookie";
 export const handleDelete = async (userId: number) => {
   try {
     const response = await fetch(
-      `http://localhost:8002/api/deleteUser/${userId}`,
+      `https://backend.insta.the1s.de/api/deleteUser/${userId}`,
       {
         method: "DELETE",
         headers: {
@@ -29,7 +29,7 @@ export const handleEdit = async (
 ) => {
   try {
     const response = await fetch(
-      `http://localhost:8002/api/editUser/${userId}`,
+      `https://backend.insta.the1s.de/api/editUser/${userId}`,
       {
         method: "PUT",
         headers: {
@@ -55,7 +55,7 @@ export const createUser = async (
   password: string
 ) => {
   try {
-    const response = await fetch(`http://localhost:8002/api/createUser`, {
+    const response = await fetch(`https://backend.insta.the1s.de/api/createUser`, {
       method: "POST",
       headers: {
         "Content-Type": "application/json",
@@ -76,7 +76,7 @@ export const createUser = async (
 export const deleteLoan = async (loanId: number) => {
   try {
     const response = await fetch(
-      `http://localhost:8002/api/deleteLoan/${loanId}`,
+      `https://backend.insta.the1s.de/api/deleteLoan/${loanId}`,
       {
         method: "DELETE",
         headers: {
@@ -97,7 +97,7 @@ export const deleteLoan = async (loanId: number) => {
 export const deleteItem = async (itemId: number) => {
   try {
     const response = await fetch(
-      `http://localhost:8002/api/deleteItem/${itemId}`,
+      `https://backend.insta.the1s.de/api/deleteItem/${itemId}`,
       {
         method: "DELETE",
         headers: {
@@ -120,7 +120,7 @@ export const createItem = async (
   can_borrow_role: number
 ) => {
   try {
-    const response = await fetch(`http://localhost:8002/api/createItem`, {
+    const response = await fetch(`https://backend.insta.the1s.de/api/createItem`, {
       method: "POST",
       headers: {
         "Content-Type": "application/json",
diff --git a/frontend/src/utils/userHandler.ts b/frontend/src/utils/userHandler.ts
index 8a3149f..89793ba 100644
--- a/frontend/src/utils/userHandler.ts
+++ b/frontend/src/utils/userHandler.ts
@@ -103,7 +103,7 @@ export const createLoan = async (startDate: string, endDate: string) => {
 
 export const onReturn = async (loanID: number) => {
   const response = await fetch(
-    `http://localhost:8002/api/returnLoan/${loanID}`,
+    `https://backend.insta.the1s.de/api/returnLoan/${loanID}`,
     {
       method: "POST",
       headers: {
@@ -122,7 +122,7 @@ export const onReturn = async (loanID: number) => {
 };
 
 export const onTake = async (loanID: number) => {
-  const response = await fetch(`http://localhost:8002/api/takeLoan/${loanID}`, {
+  const response = await fetch(`https://backend.insta.the1s.de/api/takeLoan/${loanID}`, {
     method: "POST",
     headers: {
       Authorization: `Bearer ${Cookies.get("token") || ""}`,