diff --git a/files/vm-upgrade.sh b/files/vm-upgrade.sh
index b42e670..0e83a3c 100755
--- a/files/vm-upgrade.sh
+++ b/files/vm-upgrade.sh
@@ -20,6 +20,9 @@ git switch develop-snster
 
 # On écrase les anciens fichiers
 cp -ar /tmp/kaz-vagrant/files/snster-kaz /root/
+# crypto keys
+cp -ar /etc/letsencrypt /root/snster-kaz/kaz/prod/
+cp -ar /etc/letsencrypt /root/snster-kaz/isp-a/home/
 
 # On détruit et reconstruit tout sauf kaz-prod
 SNSTER="snster -c /root/snster-kaz"