diff --git a/DESCRIPTION b/DESCRIPTION
index d6d9aa7fb6097d9af78a545f5483037e7dc9473d..5c434284fd9ec74697cd5c77a25ccb41db2e7d9e 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,8 +1,8 @@
 Package: sybil
 Type: Package
 Title: Efficient Constrained Based Modelling
-Version: 2.1.4
-Date: 2019-02-25
+Version: 2.1.5
+Date: 2019-03-07
 Authors@R: c(
          person("Mayo", "Roettger", role = c("cre"), email = "mayo.roettger@hhu.de"),
 	     person("Gabriel", "Gelius-Dietrich", role = "aut"),
@@ -56,7 +56,7 @@ Collate: generics.R validmodelorg.R validoptsol.R validreactId.R validreact.R
         sysBiolAlg_mtfClass.R sysBiolAlg_mtfEasyConstraintClass.R
         sysBiolAlg_roomClass.R sybilLogClass.R upgradeModelorg.R
         mergeReact2Modelorg.R
-Packaged: 2019-02-25 13:55:00 UTC; mayo
+Packaged: 2019-03-07 10:20:00 UTC; mayo
 Author: Mayo Roettger [cre],
   Gabriel Gelius-Dietrich [aut],
   C. Jonathan Fritzemeier [ctb],
diff --git a/inst/NEWS.Rd b/inst/NEWS.Rd
index f602705f000d80108336d6214c6ce81087ba9393..5c3f25db53dc30de4eebb3e5f0ae6b4908b92ceb 100644
--- a/inst/NEWS.Rd
+++ b/inst/NEWS.Rd
@@ -7,6 +7,14 @@
 \newcommand{\CRANpkg}{\href{https://CRAN.R-project.org/package=#1}{\pkg{#1}}}
 % ---------------------------------------------------------------------------- %
 
+\section{Changes in version 2.1.5 2019-03-07}{
+  \itemize{
+      \item Minor changes removing invalid URLs for CRAN submission.
+      \
+  }
+}
+% ---------------------------------------------------------------------------- %
+
 \section{Changes in version 2.1.4 2019-02-25}{
   \itemize{
       \item Minor code change in \code{addExchReact} for CRAN submission, where
@@ -541,8 +549,7 @@
 \section{Changes in version 1.1.0 2012-10-08}{
   \itemize{
     \item some performance improvements in function \code{fluxVar}
-    \item new function \code{modelorg2ExPA}, which writes input files for
-          \href{http://gcrg.ucsd.edu/Downloads/ExtremePathwayAnalysis}{ExPA}
+    \item new function \code{modelorg2ExPA}
     \item some very minor improvements in sybilStack (stack [LIFO] and
           queue [FIFO])
     \item solver names \code{glpk}, \code{cplex} and \code{clp} are deprecated,
diff --git a/man/Ec_core.Rd b/man/Ec_core.Rd
index 0f48f1e3f4edc7fcfd7e3c894166d0bdcbff9a38..3547a367ee423bfcd4412ca26ad65c104a01b1ff 100644
--- a/man/Ec_core.Rd
+++ b/man/Ec_core.Rd
@@ -16,8 +16,6 @@
 
 \format{An object of class \code{modelorg}}
 
-\source{\url{http://gcrg.ucsd.edu/Downloads/EcoliCore}}
-
 \references{
   Bernhard Ø. Palsson (2006).
   \emph{Systems Biology: Properties of Reconstructed Networks}.
diff --git a/man/modelorg2ExPA.Rd b/man/modelorg2ExPA.Rd
index c7350ec9ee8b41fb956d73bbe5fb053a4712bd2d..0f3c90a4842a339417240bedef823da61198111d 100644
--- a/man/modelorg2ExPA.Rd
+++ b/man/modelorg2ExPA.Rd
@@ -65,8 +65,6 @@
   Bell, S. L. and Palsson, B. Ø. (2005) Expa: a program for calculating extreme
   pathways in biochemical reaction networks. \emph{Bioinformatics} \bold{21},
   1739--1740.
-
-  The ExPA homepage \url{http://gcrg.ucsd.edu/Downloads/ExtremePathwayAnalysis}.
 }
 
 \author{