diff --git a/cookbooks/digdag/install.rb b/cookbooks/digdag/install.rb
index f636e38..e611d4e 100644
--- a/cookbooks/digdag/install.rb
+++ b/cookbooks/digdag/install.rb
@@ -26,8 +26,12 @@ link '/usr/local/bin/digdag' do
 end
 
 # Install the Java Runtime:
-%w(nkf default-jre).each do |p|
+%w(nkf openjdk-8-jdk).each do |p|
   package p do
     action :install
   end
 end
+
+execute 'update-java-alternatives -s java-1.8.0-openjdk-amd64' do
+  user 'root'
+end