diff --git a/defaults/main.yml b/defaults/main.yml
index 1b26a28..0f10efe 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -129,7 +129,7 @@ mariadb_repository: "http://ftp.igh.cnrs.fr/pub/mariadb/repo/{{ mariadb_version
 # -------------------------------------
 # Percona
 # -------------------------------------
-percona_version: '5.7'
+percona_version: '5.6'
 percona_repository: 'http://repo.percona.com/apt'