diff --git a/mojo-executor.spec b/mojo-executor.spec
index 5f44380..1472cb0 100644
--- a/mojo-executor.spec
+++ b/mojo-executor.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package mojo-executor
 #
-# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2019 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -25,16 +25,17 @@ Group:          Development/Libraries/Java
 URL:            http://timmoore.github.io/mojo-executor/
 Source0:        https://github.com/TimMoore/%{name}/archive/%{name}-parent-%{version}.tar.gz
 Source1:        http://www.apache.org/licenses/LICENSE-2.0
-BuildRequires:  maven-local fdupes
+BuildRequires:  fdupes
+BuildRequires:  maven-local
+BuildRequires:  mvn(org.apache.maven.plugins:maven-enforcer-plugin)
 BuildRequires:  mvn(org.apache.maven:maven-core)
 BuildRequires:  mvn(org.apache.maven:maven-model)
 BuildRequires:  mvn(org.apache.maven:maven-plugin-api)
-BuildRequires:  mvn(org.apache.maven.plugins:maven-enforcer-plugin)
 BuildRequires:  mvn(org.codehaus.plexus:plexus-utils)
 BuildRequires:  mvn(org.slf4j:slf4j-api)
 BuildRequires:  mvn(org.slf4j:slf4j-simple)
 BuildRequires:  mvn(org.sonatype.oss:oss-parent:pom:)
-BuildArch: noarch
+BuildArch:      noarch
 
 %description
 The Mojo Executor provides a way to to execute other Mojos (plugins) within a Maven plugin,
@@ -56,7 +57,7 @@ perl -pi -e 's#org\.sonatype\.aether\.repository#org.eclipse.aether.repository#g
 	mojo-executor/src/main/java/org/twdata/maven/mojoexecutor/MavenCompatibilityHelper.java
 
 %build
-%mvn_build -f
+%mvn_build -f -- -Dmaven.compiler.release=6
 
 %install
 %mvn_install