Mavenfile in jruby-jars-9.2.21.0 vs Mavenfile in jruby-jars-9.3.0.0

@@ -13,10 +13,11 @@
 inherit "org.jruby:jruby-artifacts:#{version}"
 
 name "JRuby Jars Gem"
 
 jar 'org.jruby:jruby-stdlib', '${project.parent.version}'
+jar 'org.jruby:jruby-core', '${project.parent.version}', scope: "compile"
 
 plugin( :clean, '2.5' ) do
   execute_goals( :clean,
                  :phase => :clean, 
                  :id => 'clean-lib',
@@ -51,10 +52,11 @@
 # the bang reuses the plugin declaration which is already in place and
 # adds the extra execute_goal to it
 jruby_plugin!( :gem,
                :gemspec => 'jruby-jars.gemspec',
                # tell maven to include the jar files into gem
-               :includeDependencies => true ) do
+               :includeDependencies => true,
+               :jrubyVersion => '9.3.0.0-SNAPSHOT') do
   execute_goals :id => 'default-push', :skip => true
 end
 
 build do
   final_name "${project.artifactId}-#{ruby_version}"