diff --git a/Dockerfile.zammad b/Dockerfile.zammad
index 56e880e..a089eec 100644
--- a/Dockerfile.zammad
+++ b/Dockerfile.zammad
@@ -7,7 +7,7 @@ ENV ZAMMAD_DEBUG no
 ENV RAILS_ENV production
 ENV RAILS_SERVER puma
 ENV GIT_URL https://github.com/zammad/zammad.git
-ENV GIT_BRANCH stable
+ENV GIT_BRANCH develop
 
 LABEL org.label-schema.build-date="$BUILD_DATE" \
       org.label-schema.name="Zammad" \
diff --git a/install-zammad.sh b/install-zammad.sh
index 388c6a2..6f8907e 100644
--- a/install-zammad.sh
+++ b/install-zammad.sh
@@ -9,7 +9,7 @@ cp -R /tmp/zammad/.[!.]* ${ZAMMAD_DIR}
 cd ${ZAMMAD_DIR}
 rm -rf /tmp/zammad
 bundle install --without test development mysql
-test -f contrib/packager.io/fetch_locales.rb && contrib/packager.io/fetch_locales.rb
+&& contrib/packager.io/fetch_locales.rb
 sed -e 's#.*adapter: postgresql#  adapter: nulldb#g' -e 's#.*username:.*#  username: postgres#g' -e 's#.*password:.*#  password: \n  host: postgresql\n#g' < config/database.yml.pkgr > config/database.yml
 bundle exec rake assets:precompile
 sed -e 's#.*adapter: postgresql#  adapter: postgresql#g' -e 's#.*username:.*#  username: postgres#g' -e 's#.*password:.*#  password: \n  host: postgresql\n#g' < config/database.yml.pkgr > config/database.yml