diff --git a/config/deploy.rb b/config/deploy.rb
index fd3fef9..89a9d46 100644
--- a/config/deploy.rb
+++ b/config/deploy.rb
@@ -12,3 +12,13 @@
 
 set :deploy_to, '/opt/imagecat-rails'
 # set :ssh_options, {verify_host_key: :never}
+
+desc "Write the current version to public/version.txt"
+task :write_version do
+  on roles(:app), in: :sequence do
+    within repo_path do
+      execute :tail, "-n1 ../revisions.log > #{release_path}/public/version.txt"
+    end
+  end
+end
+after "deploy:log_revision", "write_version"