diff --git a/.gitignore b/.gitignore
index cd839f8..bca24ea 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,3 +40,4 @@ qgis_1.5.0.tar.gz
 /qgis-2.18.14.tar.bz2
 /qgis-2.18.15.tar.bz2
 /qgis-2.18.16.tar.bz2
+/qgis-2.18.20.tar.bz2
diff --git a/qgis.spec b/qgis.spec
index 4e6db1b..0ea3417 100644
--- a/qgis.spec
+++ b/qgis.spec
@@ -15,8 +15,8 @@
 #TODO: Run test suite (see debian/rules)
 
 Name:           qgis
-Version:        2.18.16
-Release:        4%{?dist}
+Version:        2.18.20
+Release:        1%{?dist}
 Summary:        A user friendly Open Source Geographic Information System
 
 # http://hub.qgis.org/issues/3789
@@ -408,6 +408,10 @@ update-mime-database %{?fedora:-n} %{_datadir}/mime &> /dev/null || :
 
 
 %changelog
+* Sun Jun 17 2018 Volker Fröhlich <volker27@gmx.at> - 2.18.20-1
+- New upstream release
+- Rebuild for Grass to solve BZ#1577583
+
 * Sat Mar 03 2018 Volker Fröhlich <volker27@gmx.at> - 2.18.16-4
 - Rebuild for Grass
 
diff --git a/sources b/sources
index 87916ac..1e652c6 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (qgis-2.18.16.tar.bz2) = 1fe060c1d392f304eea10a211815e14081299a865e34114625f3a5f2a1b365f571bb30878a21cbf25bc32285ffc689d37cb7dbcab129ce5f03ccd6fa0781876d
+SHA512 (qgis-2.18.20.tar.bz2) = 094e33019d6832e09d5aace067a2870ac1dffa86cdeef70666c8c344f79c4a16de6b16074349e8430fadda62e987d5b6517cf337fd06c4cc0e4e84b85a749199