diff --git a/check_process b/check_process
index e372b9e..dd65b2a 100644
--- a/check_process
+++ b/check_process
@@ -16,6 +16,8 @@
 		upgrade=1	from_commit=90fb1a7cb3db812a8b2558673d5f1f22b39becec
 		# 2.1.113
 		upgrade=1	from_commit=f9dd286ff1d662e4ece78364230fc2fddef721cd
+		# 2.2.51
+		upgrade=1	from_commit=1898f27765068f49de23e7ba66b1fc23571799dc		
 		backup_restore=1
 		multi_instance=1
 		# This test is no longer necessary since the version 2.7 (PR: https://github.com/YunoHost/yunohost/pull/304), you can still do it if your app could be installed with this version.