diff --git a/README.md b/README.md
index e3d7b4e..479045b 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ Host entries in a personal `~/.ssh/config` file.
 # Compatibility
 
 This module has been tested to work on the following systems with the
-latest Puppet v3, v3 with future parser, v4 and v5.  See `.travis.yml`
+latest Puppet v3, v3 with future parser, v4, v5 and v6.  See `.travis.yml`
 for the exact matrix of supported Puppet and ruby versions.
 
  * Debian 7