diff --git a/doc/handbook/4_developingdumux.tex b/doc/handbook/4_developingdumux.tex
index b3eafb5da9cdf9efd816121c325ca4bb16d081d5..4232a69197b32c34f597e081fbbf64afe4ff1c7a 100644
--- a/doc/handbook/4_developingdumux.tex
+++ b/doc/handbook/4_developingdumux.tex
@@ -2,10 +2,15 @@
 \label{sc_developingdumux}
 
 \subsection{Communicate with \Dumux Developers}
+
+\paragraph{GitLab Issues}
+The bug-tracking system \emph{GitLab Issues} offers the possibility to report bugs or
+discuss new development requests. Feel free to register (if you don't have a \emph{Git} account alreay) and to constribute
+at \url{https://git.iws.uni-stuttgart.de/dumux-repositories/dumux/issues}.
+
 \paragraph{Flyspray}
-The bug-tracking system \emph{Flyspray} offers the possibility to report bugs or
-discuss new development requests. Feel free to register and to constribute
-at \url{http://www.dumux.org/flyspray/}.
+The bug-tracking system \emph{Flyspray} has been replaced by \emph{GitLab Issues} and will not
+be used anymore.
 
 \paragraph{Automatic Testing Dashboard}
 The automatic testing using \emph{BuildBot} helps to constantly check the