diff --git a/README.md b/README.md
index b348c7845c4c55207cffa882a10ed15b1cffc161..861df31529660cb4a1187693271cb4aafb4d9e3b 100644
--- a/README.md
+++ b/README.md
@@ -117,10 +117,9 @@ which is then requested as a tarball and unpacked.
 http://localhost:5005/validation.html
 ```
 
-A working  PTB internal Service: 
-http://a73434.berlin.ptb.de:5005/validation.html
-
+Uses the informations from https://www.ptb.de/dcc/releases.json
 
+A functioning PTB-internal server can be reached at the address: http://a73434.berlin.ptb.de:5005/validation.html