diff --git a/scripts/upgrade b/scripts/upgrade
index e5bfb0f..3cf6554 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -8,6 +8,10 @@ db_pwd=$(sudo yunohost app setting agendav mysqlpwd)
 db_name=agendav
 encryptkey=$(sudo yunohost app setting agendav encryptkey)
 
+# Install dependencies
+sudo apt-get update
+sudo apt-get install php5-cli -y
+
 # Clean up existing files and copy new files to the right place
 final_path=/var/www/agendav
 sudo rm -rf $final_path