diff --git a/README.md b/README.md
index 9511132..fe70138 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@ With this plugin servers can acquire a lock in Foreman to ensure only one server
 | >= 1.15         | ~> 0.1         |
 | >= 1.17         | ~> 1.0         |
 | >= 3.0          | ~> 2.0         |
+| >= 3.9          | ~> 3.0         |
 
 ## Installation
 
diff --git a/lib/foreman_dlm/version.rb b/lib/foreman_dlm/version.rb
index ed5e1c7..fa17c51 100644
--- a/lib/foreman_dlm/version.rb
+++ b/lib/foreman_dlm/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module ForemanDlm
-  VERSION = '2.0.0'
+  VERSION = '3.0.0'
 end