diff --git a/build.properties b/build.properties
index 9c6f3c1fc..444c378b9 100644
--- a/build.properties
+++ b/build.properties
@@ -3,7 +3,7 @@ javacSource=1.7
 javacTarget=1.7
 
 # Release Configuration
-releaseVersion=1.90
+releaseVersion=1.91
 stdReleaseFile=yacy${branch}_v${releaseVersion}_${DSTAMP}_${releaseNr}.tar.gz
 sourceReleaseFile=yacy_src_v${releaseVersion}_${DSTAMP}_${releaseNr}.tar.gz
 releaseFileParentDir=yacy