diff --git a/config/deploy.rb b/config/deploy.rb
index 2100a544..fd3fef90 100644
--- a/config/deploy.rb
+++ b/config/deploy.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # config valid for current version and patch releases of Capistrano
-lock '~> 3.17.2'
+lock '~> 3.0'
 
 set :application, 'imagecat_rails'
 set :repo_url, 'https://github.com/pulibrary/imagecat-rails'