diff --git a/check_process b/check_process
index 0587cd1..b1fead1 100644
--- a/check_process
+++ b/check_process
@@ -15,6 +15,8 @@
 		upgrade=1	from_commit=f75d58cb32c51a0981333ea88974dc3199324e65
 		# 2.3.8~ynh3
 		upgrade=1	from_commit=2e20b8f9a6b791e059b806fcfc2253f88d1aeaf2
+		# 2.3.8~ynh4
+		upgrade=1	from_commit=4da53256350d7e4d63812ed3244e945346a5d9b7
 		backup_restore=1
 		multi_instance=1
 		port_already_use=0