diff --git a/views/DE/404.pug b/views/DE/404.pug
index c4178253b9cec40907906ccd33fc39ac6e85c990..5a16f0863287e4c4728d22cb6b594203d1fd9edc 100644
--- a/views/DE/404.pug
+++ b/views/DE/404.pug
@@ -4,7 +4,7 @@ html(lang="de")
     title= "404 - Page not found"
     meta(charset="UTF-8")
     meta(name="viewport", content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no")
-    link(rel="stylesheet", type="text/css", href="https://transfer.hft-stuttgart.de/css/bootstrap/bootstrap.css")
+    link(rel="stylesheet", type="text/css", href="/css/bootstrap.min.css")
     style.
       .container { 
         height: 400px;
diff --git a/views/DE/500.pug b/views/DE/500.pug
index 704573397c7252fc0a8034428da47602afa9b994..aea0e76c327decde492f063feeac5a7a364a9ac4 100644
--- a/views/DE/500.pug
+++ b/views/DE/500.pug
@@ -4,7 +4,7 @@ html(lang="de")
     title= "500 - Internal Server Error"
     meta(charset="UTF-8")
     meta(name="viewport", content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no")
-    link(rel="stylesheet", type="text/css", href="https://transfer.hft-stuttgart.de/css/bootstrap/bootstrap.css")
+    link(rel="stylesheet", type="text/css", href="/css/bootstrap.min.css")
     style.
       .container { 
         height: 400px;