diff --git a/rpm/default.cfg b/rpm/default.cfg
index def3a65233a..87c3bc08d46 100644
--- a/rpm/default.cfg
+++ b/rpm/default.cfg
@@ -10,10 +10,10 @@ OUTDIR="result/"
 
 # Which arches to build for. Check /etc/mock for possible options
 ARCHS=(
-        "fedora-26-i386"
-        "fedora-26-x86_64"
         "fedora-27-i386"
         "fedora-27-x86_64"
+        "fedora-28-i386"
+        "fedora-28-x86_64"
       )
 
 # Which git branch to export. Normally take the current
diff --git a/rpm/qgis.spec.template b/rpm/qgis.spec.template
index f283a58eca9..6c2d6b17479 100644
--- a/rpm/qgis.spec.template
+++ b/rpm/qgis.spec.template
@@ -18,11 +18,7 @@
 %define builddate %(date '+%a %b %d %Y')
 %endif
 
-%if 0%{?fedora} >= 27
 %define grass grass74
-%else
-%define grass grass72
-%endif
 
 Name:           qgis
 Version:        %{_version}