diff --git a/scripts/upgrade b/scripts/upgrade
index 1612564..20d0978 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -95,7 +95,7 @@ then
 	pushd $final_path
 		ynh_use_nodejs
 		#npm update -g tiddlywiki
-		ynh_exec_as $app env $ynh_node_load_PATH $ynh_npm update -g tiddlywiki
+		ynh_exec_as $app env $ynh_node_load_PATH $ynh_npm update -g tiddlywiki@5.2.1
 	popd
 fi