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           <!-- Grid column -->
           <div class="col-lg-3 col-md-6 mb-lg-0 mb-5">
             <div class="avatar mx-auto">
-              <img src="./imgs/avatar/DieterUcklemann.png" class="rounded-circle z-depth-1" width="150px">
+              <img src="./imgs/avatar/DieterUcklemann.jpeg" class="rounded-circle z-depth-1" width="150px">
             </div>
             <h5 class="font-weight-bold mt-4 mb-3">Prof. Dr. Dieter Uckelmann</h5>
             <p class="text-uppercase blue-text"><strong>Lab Leader</strong></p>
-            <a href="https://www.hft-stuttgart.de/p/volker-coors" target="_blank">
+            <a href="https://www.hft-stuttgart.de/p/dieter-uckelmann" target="_blank">
               <button class="btn btn-primary btn-sm profile">See full profile</button>
             </a>
             <p class="grey-text">Research topic: Smart Cities | Sensors & IoT | Industrie 4.0 | Lab-based Education | Digitalisation | Smart Buildings | RFID | RTLS | BM | AI</p>