diff --git a/scripts/upgrade b/scripts/upgrade
index 93ba526..50fb4f2 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -23,7 +23,7 @@ turnserver_tls_port=$(ynh_app_setting_get $app turnserver_tls_port)
 turnserver_pwd=$(ynh_app_setting_get $app turnserver_pwd)
 
 # To be sure that the migration is sucessfull we check that the old synapse version is compatible with the synapse_port_db script.
-if [[ -z $synapse_old_version ]] && [[ $(dpkg -l | grep -c -E "ii.*matrix-synapse.*0.25") != 1 ]] && [[ $(dpkg -l | grep -c -E "ii.*matrix-synapse.*0.24") != 1 ]]
+if [[ -z $synapse_old_version ]] && [[ $(dpkg -l | grep -c -E "ii.*matrix-synapse.*0.25") != 1 ]] && [[ $(dpkg -l | grep -c -E "ii.*matrix-synapse.*0.26") != 1 ]]
 then
 	ynh_die "Update from this synapse version is not available now. You need to wait for the next update."
 fi