diff --git a/src/cache.ts b/src/cache.ts
index bef0d8e..f21306a 100644
--- a/src/cache.ts
+++ b/src/cache.ts
@@ -23,10 +23,11 @@ class SiteCache {
         return this.cachedData;
     }
 
-    set(key: string, data: any) {
+    set(key: string, data: any, lifeTime: number = 1000 * 60 * 30) {
         this.cachedData = data;
         this.lastUsed = new Date();
         this.key = key;
+        this.lifeTime = lifeTime;
     }
 }
 
@@ -46,10 +47,10 @@ export default class Cache {
         return null;
     }
 
-    set(key: string, data: any) {
+    set(key: string, data: any, lifeTime: number = 1000 * 60 * 30) {
         for (let i = 0; i < this.cache.length; i++) {
             if (this.cache[i].key === key) {
-                this.cache[i].set(key, data);
+                this.cache[i].set(key, data, lifeTime);
                 return;
             }
         }
diff --git a/src/index.ts b/src/index.ts
index 97b0ae6..fdc3535 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -40,7 +40,8 @@ app.get("/api/bl/:Bundesland", (req: Request, res: Response) => {
                 return res.send("Invalid request");
             }
             stripedData = stripCampus(data);
-            cache.set("BL: "+req.params.Bundesland, stripedData);
+            const lifeTime = 1000 * 60 * 60 * 24 * 7;
+            cache.set("BL: "+req.params.Bundesland, stripedData, lifeTime);
             res.send(stripedData);
         });
     }
@@ -59,13 +60,16 @@ app.get("/api/:Location/:Mensa?", (req: Request, res: Response) => {
         }
         fetch(url).then((data) => {
             let stripedData = null;
+            let lifeTime = 1000 * 30;
             if (data === null) {
                 return res.send("Invalid request");
             }
             if (req.params.Mensa !== undefined) {
                 stripedData = stripMensa(data);
+                lifeTime = 1000 * 60 * 60 * 24;
             }else {
                 stripedData = stripCampus(data);
+                lifeTime = 1000 * 60 * 30;
             }
 
             cache.set(req.params.Mensa ?? req.params.Location, stripedData);