diff --git a/check_process b/check_process
index f12a538..a4dab4b 100644
--- a/check_process
+++ b/check_process
@@ -17,8 +17,10 @@
         setup_private=1
         setup_public=1
         upgrade=1
+        # 3.13.6~ynh4
+        upgrade=1    from_commit=bdb0c5049c8eacbef68059d2821353d0e0345290
         # 3.13.6~ynh2
-        upgrade=1    from_commit=e755357f8306805084317c81e85807ed87fdbd47
+        #upgrade=1    from_commit=e755357f8306805084317c81e85807ed87fdbd47
         # 3.13.6~ynh1
         #upgrade=1    from_commit=7474baadc1705ffe5981a52bdced16bdd1edf979
         backup_restore=1