diff --git a/debian/rake-tasks.sh b/debian/rake-tasks.sh
index 054d83dbc3..7695d98fde 100755
--- a/debian/rake-tasks.sh
+++ b/debian/rake-tasks.sh
@@ -29,6 +29,9 @@ runuser -u ${gitlab_user} -- sh -c '/usr/bin/bundle exec rake db:migrate'
 # Restrict permissions for secret files
 chmod 0700 ${gitlab_data_dir}/.gitlab_shell_secret
 
+# Make yarn.lock writable temporarily
+chmod 777 yarn.lock
+
 echo "Installing node modules..."
 runuser -u ${gitlab_user} -- sh -c 'install -d /var/lib/gitlab/.node_modules'
 runuser -u ${gitlab_user} -- sh -c 'yarnpkg install'