diff --git a/scripts/upgrade b/scripts/upgrade
index 66de15e..574d997 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -81,9 +81,9 @@ then
 
 	# Download, check integrity, uncompress and patch the source from app.src
 	pushd "$final_path"
-		git checkout master
-		git pull --quiet
-		git checkout $COMMIT --quiet
+		ynh_exec_as $app git checkout master
+		ynh_exec_as $app git pull --quiet
+		ynh_exec_as $app git checkout $COMMIT --quiet
 	popd
 fi