diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ecf21a2d476a092ad3f55e875372bd74aa858e0..88eb2766b2696ffff8f71cb103c4ce78f53e29a0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 Upcoming version:
 -----------------
+  - version update to latest geoserver binary (Nikolaus Krismer)
   - got rid of repoforge/rpmforge. cmake is not needed anymore (no pgrouting is used anymore). version udpates (Nikolaus Krismer)
   - disabling advanced projection handling in Geoserver's WMS, to prevent problems with useCoverageMask in isochrone-web (Nikolaus Krismer)
   - minor coverage style improvements (Nikolaus Krismer)
diff --git a/bootstrap/prepareEnvironment.sh b/bootstrap/prepareEnvironment.sh
index 4ac76a7ab4cd0e5072beca07dfd56046155b4461..9ade5d5cd9847159cb0536e7d2172c295b317569 100755
--- a/bootstrap/prepareEnvironment.sh
+++ b/bootstrap/prepareEnvironment.sh
@@ -79,7 +79,7 @@ fn_arg2boolean IS_JENKINS_DEPLOY "${3}" "${IS_JENKINS_DEPLOY}"
 GDAL_VERSION="2.0.0"
 GDAL_FILE="gdal-$GDAL_VERSION.tar.gz"
 GDAL_DOWNLOAD_URL="http://download.osgeo.org/gdal/$GDAL_VERSION/$GDAL_FILE"
-GEOSERVER_VERSION="2.9.0"
+GEOSERVER_VERSION="2.9.1"
 GEOSERVER_FILE="geoserver-$GEOSERVER_VERSION-war.zip"
 GEOSERVER_DOWNLOAD_URL="http://sourceforge.net/projects/geoserver/files/GeoServer/$GEOSERVER_VERSION/$GEOSERVER_FILE"
 GEOSERVER_SHELL_VERSION="0.2.1"