diff --git a/pl/java/libfws/mapping/mapstruct.txt b/pl/java/libfws/mapping/mapstruct.txt
index 547008689..83f54aba8 100644
--- a/pl/java/libfws/mapping/mapstruct.txt
+++ b/pl/java/libfws/mapping/mapstruct.txt
@@ -9,5 +9,7 @@ http://mapstruct.org/documentation/installation/
 http://mapstruct.org/documentation/reference-guide/
 http://mapstruct.org/documentation/stable/reference/html/
 
+2023
+https://www.baeldung.com/mapstruct
 2018
 https://habr.com/post/433270/